Heal back to 50% HP, gain 32 Block, and remove all debuffs.
Unique among enemies, Time Eater is capable of ending the player's turn immediately. The player should take special care to ensure that they can play an appropriate number of cards each turn.
The Time Eater punishes decks that play many cards per turn, such as infinite or Shiv decks, especially hard. If you are relying heavily on this deck type in Act 3, it may be worth reconsidering your strategy.
Playing a consistent number of cards per turn may be useful so that Time Warp does not limit you to a one-card turn. For example, it's usually preferable to play 4 cards, then 5, then 3, rather than 7 cards, then 4, then 1.
Try to avoid using low-cost, spammable cards when you can. These cards will quickly increment the Time Warp ability and Time Eater will gain too much strength to be dealt with.
As an example, if you were to play Acrobatics, draw 1 Strike+ and 1 Defend+, and play them both, it would cost 3 Time Warp charges. A single Dash+ would give roughly the same block and damage for the same amount of energy, but only 1 Time Warp charge.
Time Eater can only use Haste once and will always use Haste the turn after falling below half HP. Since Haste erases all debuffs and heals the Time Eater back to half HP, there is no reason to take offensive action once the Time Eater is below half HP unless you can kill the Time Eater in one turn. It is better to play Powers and buff yourself for the remaining battle when possible.
Due to the fact that the heal can be reliably activated, it may be worth ending the turn with Time Warp close to 12 if it lets you get the Time Eater below half HP, as you can safely play only one or two cards next turn while he heals, resetting the timer.
The debuff cleanse from Haste can be challenging for certain decks, such as slow-ramping Poison decks. Plan accordingly.
The Watcher can nullify Time Warp by playing Vault as the twelfth card. The result is the same as if you had normally played a Vault card and the Time Warp counter is reset.
It is possible that the Time Eater is related to the Watcher in some way. Their attires are different shades of purple and adorned with a similar motif. It also says "Never... Liked... You..." on its first turn when facing the Watcher, instead of the usual "Ah... company."
The Watcher's Sensory Stone text implies that her peer went missing and stopped reporting back to their sect about the Spire. Time Eater might be that missing peer of hers.
Weekly Patch 51: Recursion
Burn cards no longer trigger Time Eater's ability at end of turn.
Weekly Patch 42: Reboot
Adding a VFX for when your turn ends due to Time Warp power.
Updating SFX for Time Warp Power.
Weekly Patch 40: Forethought
Adding SFX for Time Warp, Flight, Constricted, and Entangle Powers.
Weekly Patch 18: Paranormal
Time Eater's Time Warp no longer increments when Curses play themselves.
Weekly Patch 11: A Library of Features
Curses/Statuses that play themselves no longer trigger Powers (Time Warp, After Image, etc)
Weekly Patch 10: Quality of Life
We updated the animations for several monsters! Affected monsters include: Time Eater
Weekly Patch 2: Slimes!
Time Eater now gains less Strength from Time Warp but base damage for attacks increased.
Weekly Patch 1: The First of Many!
Time Eater and Champ now show which Powers get removed when they remove them.