Environment: Time Cataclysm
There is a terrible rift in time! Somehow, alternate realities within the Multiverse have collided, and the aftermath has split the space-time continuum itself! The varied realities and timelines pour into each other, only occasionally halted by the fixed points in time. This massive Time Cataclysm is the energy that is bringing together so many of these characters in the Multiverse that should never meet. Past, present, and future all mix with dangerous results…
- Fixed Point (x1)
- All cards other than this card are indestructible. At the start of the Environment turn, destroy this card.
- Art: The Dreamer, standing in a hospital gown, with an IV drip. The floor she is standing on appears to be a hospital, the walls have fallen away revealing a starry background and floating land masses;
- Flavor text: "This event must occur in every reality across time," Omnitron-X posited. The Visionary just hung her head. Not one Vanessa Long could be safe.
- References: No particular environment
- Rift in Time (x2)
- At the end of the Environment turn, play the top card of the Environment deck. At the start of the Environment turn, destroy 1 Environment card.
- Art: La Paradoja Magnifica sails on a sea parted in two, a glowing orb hangs in the gap between the two halves of the sea;
- Flavor text: Maria Helena smiled. All eternity opened before her ship, La Paradoja Magnifica, and she could feel the temporal tides in her very soul. "All hands on deck!"
- References: Time Cataclysm
- Atlantean Throne Room (x1)
- Reduce all Damage by 1. At the start of the Environment turn, each Player may draw a card. If none do, destroy this card.
- Art: A throne carved out of stone, decorated with a snake on one side and a Cthulhu-type monster on the other. Glowing white liquid and glowing orange liquid flow into and pour out of bowls on either side;
- Flavor text: The cavernous chamber was lit by the granite tracks of mercury and molten steel. Energy emanated from the throne itself, both revitalizing and subduing
- References: Ruins of Atlantis
- Main Computer Room (x1)
- At the end of the Environment turn, play the top card of the Villain deck. At the start of the Environment turn, each Player may draw a card.
- Art: Tachyon speeding into the room and typing away on a computer, A Blade Battalion lies in various prostrate poses on the ground behind her;
- Flavor text: "I've got the computer mostly locked down," Tachyon rattled off. "Just a few more security protocols to deal with and I'll have the whole thing wiped. Not sure what this Baron Blade was up to but I've got a bit of sample data to take back!"
- Referencess: Mobile Defense Platform
- Marsquake! (x1)
- At the end of the Environment turn, deal each Target 2 Melee Damage. At the start of the Environment turn, destroy 1 Villain Ongoing card, 1 Hero Ongoing card, and 1 Environment card.
- Art: A broken catwalk extends across the card, a fire rages in the break. Tachyon is extending her arm across the divide, towards Ambuscade;
- Flavor text: "Take my hand!" Tachyon shouted as the walkway shuddered. The hunter backed away warily while keeping an eye on the hero. "Non, merci." was his only reply.
- References: Wagner Mars Base
- Oppressive Smog (x1)
- Reduce all HP recovery by 2. At the start of the Environment turn, a player may discard 1 card to destroy this card.
- Art: A city drop covered in smog, The Wraith is perched on a gargoyle overseeing the city;
- Flavor text: The heavy smog settled over downtown Rook City. The evil which lurked in every alley would encounter little resistance tonight, unfortunately for the Wraith.
- References: Rook City
- Surprise Shopping Trip (x1)
- Whenever a card enters play, deal each Target 1 Melee Damage. At the start of the Environment turn, destroy this card.
- Art: Spite trying to punch Nightmist while she is in mist form. They are fighting in a shop selling luggage (Wilson Luggage?), briefcases rain down on both of them;
- Flavor text: Luggage filled the air as Spite tried to strike down the ethereal Nightmist. "Why won't you fight me!" the killer screamed. "Why won't you learn?" Nightmist yawned.
- References: Megalopolis
- Tendrils of Madness  (x1)
- At the end of the Environment turn, this card deals the Target with the highest HP 1 Infernal Damage. Increase Damage dealt by that Target by 1 until the start of the Environment turn.
- Art: The Visionary, her eyes closed while grinning faces swirl around her, has a mini octopus attached to her the back of her head. The octopus' eye glows red;
- Flavor text: The Visionary struck out in a blind rage driving back the gathered cultists. "Uh, Vanessa," Absolute Zero began, haltingly. "There is something on your head."
- References: Realm of Discord
- Typhoon (x1)
- At the end of the Environment turn, each Player must put 1 card from their hand on top of their deck. At the start of the Environment turn, if there are no other Anomaly cards in play, destroy this card.
- Art: A typhoon rages, a tree swaying dangerously in wind;
- Flavor text: "Tempest! Are you unable to do anything about this?!" Fanatic shouted through the howling wind. The alien hero looked into the storm, striving to stop the inevitable.
- References: No particular environment
- F.I.L.T.E.R. Spy  (x1)
- At the end of the Environment turn, this card deals the non-Agent Target with the second highest HP minus 1 Toxic Damage.
- Art: A F.I.L.T.E.R. Agent, loading his revolver with a dart. A CCTV camera looks on;
- Flavor text: "My my," the blue-suited agent quipped, materializing from the shadows. "What a splendid set of circumstances we have here… time to gather some specimens."
- References: The Block
- Giant Mutated Specimen  (x1)
- At the end of the Environment turn, this card deals the minus 1 Targets with the highest HP 1 Toxic Damage each.
- Art: A giant cockroach with green fluid dripping off it. A broken green vat is to the left of it, an intact orange vat to the right;
- Flavor text: There was an awful chittering as a huge cockroach-like creature emerged from the broken tank. "Ugh!" Unity grumbled. "Someone get a shoe. A really big shoe."
- References: Pike Industrial Complex
- Passing Tumbleweed  (x1)
- At the start of the Environment turn, destroy 1 Environment card.
- Art: A tumbleweed drifts across a desert;
- Flavor text: Expatriette took a moment to reload, hoping nothing else would come through the temporal portal. When a tumbleweed bounced past, she just shook her head.
- References: Silver Gulch 1883
- Charging Triceratops  (x1)
- Reduce Damage dealt to this card by 1. At the start of the Environment turn, this card deals the Target other than itself with the second lowest HP 3 Melee Damage.
- Art: An isometric view of a triceratops, it appears to be skidding, having just overshot its target;
- Flavor text: "Look out, team!" Legacy shouted as a giant prehistoric beast hurdled through the space formerly occupied by a bay of future tech. "That was a close one!"
- References: Insula Primalis
- Crushing Hallway (x1)
- At the end of the Environment turn, 1 Player may discard their hand to destroy this card. At the start of the Environment turn, deal each Target 4 Melee Damage and destroy all Hero Ongoing cards.
- Art: Two walls moving slowly in, trying to crush Chrono-Ranger (who has his back against a wall pushing the other wall with his legs) and Nightmist (who has a log and is trying to halt the walls progress) The art in this picture does not extend to the borders of the card, giving a crushing feeling;
- Flavor text: "Hurry!" Nightmist yelled. "We're almost out of time!" Jim just kept pushing and drawled, "One thing's for sure - we're all going to be a lot thinner…"
- References: Tomb of Anubis
Meta: Time Cataclysm
Main Episode: Episode 52
- The time cataclysm has many cards that are call backs (or, in a few cases, call forwards) to other Sentinels environments and events:
- "Main Computer Room" - Freedom Five Annual #1 webcomic
- "Charging Triceratops" - Insula Primalis
- "Fixed Point" - Most likely the Realm of Discord. Possibly one of the Time Cataclysm's "own" cards.
- "Passing Tumbleweed" - Silver Gulch. It should be noted that the Silver Gulch mini-expansion was published after the Shattered Timelines expansion, making this a future event.
- "Surprise Shopping Trip" - Megalopolis or Rook City.
- "Giant Mutated Cockroach" - Pike Industrial.
- "Tendrils of Madness" - Realm of Discord.
- "Atlantean Throne Room" - Ruins of Atlantis
- "Oppressing Smog" - Rook City
- "Typhoon" - Most likely Insula Primalis
- "Crushing Hallway" - Tomb of Anubis.
- "Marsquake" - Wagner Mars Base
- "F.I.L.T.E.R. Spy" - The Block. .
- "The child is the center" refers to The Dreamer. A hint at this can be found on the infamous card "Fixed Point". The "Fixed Point" is that in every reality, young Vanessa Long manifests powers. The Visionary came from her time to prevent the Vanessa Long of this reality from going through what she did, and yet, this reality's Vanessa Long STILL manifested powers. This is important, because these "Fixed Points" across spacetime is how OblivAeon is destroying everything. The more points that realities have in common, the more they draw "close" and if multiple realities are too close, they act as cosmic anti-matter, destroying each other. 
To Other Works
- The card "Typhoon" represents the real world typhoon that delayed delivery of the Infernal Relics expansion 
- The F.I.L.T.E.R Spy pictured bears a strong resemblance to the Spy class of the PC game Team Fortress 2
- The flavor text of 'Crushing Hallway' is a reference to the compactor scene from Star Wars: A New Hope.
- On "Tendrils of Madness" the creature pictured on the back of Visionary's head is very similar to the "Thought Nibbler," a card from the Magic the Gathering TCG that is famous for being useless.
- Cards that go next to other cards are considered to enter play next to the other card. So for example, if you play Energy Bracer next to a hero and Surprise Shopping Trip reacts, the damage to the hero is reduced by 1 by the Energy Bracer.
- Once something is in the process of being destroyed, it will be destroyed. That includes being healed back to positive HP and becoming indestructible. Yes, even Fixed Point.
- When Fixed Point is destroyed, it does not look into the past to determine if anything should be destroyed. For example, multiple Tool cards in play do not return to hand (until the next time a Tool card is played). The only thing that happens when Fixed Point is destroyed is that targets with <= 0 HP, and are no longer indestructible, are destroyed.
- If Fixed Point is in play and Rule from the Front is played, you must choose to discard cards because you cannot destroy any of your cards.
- While Fixed Point is in play, Aegis of Resurrection still takes effect immediately when Fanatic is reduced to <= 0 HP. Same thing with Apostate on his back side, or any other cards that still have “reduced to 0 or less HP.”
- Suppose Fixed Point is in play and Omnitron is dealt 7 or more damage in the round (with components in play). Its components are not destroyed due to Fixed Point. Once Fixed Point is destroyed, the components are destroyed immediately because Omnitron had been dealt 7 or more damage in the round.
- When Fixed Point is in play, and a card is played that goes “next to a non-character target” but there are no such targets, the card cannot enter play and goes to the trash.
- Since Ambuscade’s Trap cards never enter play, they are not affected by Fixed Point in any way.
- Sky-Scraper can swap character cards if Fixed Point is in play.
- If an Ammo card is flipped face up when Fixed Point is in play, and no guns are in play, it just stays where it is, face up in Expatriette’s play area. Since it’s indestructible it cannot go to the trash.
- This card makes all cards besides itself indestructible, which can have a number of interesting effects. One is that heroes who are reduced to 0 or fewer hp while “Fixed Point” is in play are not immediately flipped to their incapacitated side (see “hero destruction” in the “damage” section). Also, effects which have destruction as part of their effect will behave differently if that effect is triggered while “Fixed Point” is in play. For example, the power on Ra’s “Staff of Ra” says “Ra deals 1 target 3 projectile damage. destroy this card.” since the two sentences aren’t linked, they are independent and the fact that the card won’t be destroyed because of “Fixed Point” doesn’t stop the damage from taking place. However, in some cases, the destruction is linked to the effect. Unity’s base power says “destroy 1 equipment card. if you do, put a mechanical golem from hand into play.” because it says “if you do”, you can’t put a golem into play if you haven’t destroyed an equipment card (which you can’t do if “Fixed Point” is in play). Finally, some destruction effects are linked to actions the player must take. For example, Bunker’s “Gatling Gun” says in part, “at the end of your turn, discard 1 card or destroy this card.” but if all cards are indestructible thanks to “Fixed Point”, the player could just choose to not pay the cost (discarding 1 card) and will still get to keep the card since it cannot be destroyed while “Fixed Point” is in play. 
- One-shots will not remain in play after they’ve been played due to “Fixed Point”.