About this data
- How we collected it
- We went through UPD 21 creator videos and player threads from November 1 to 12, 2026, kept units whose effect at least one creator describes plainly, and counted each channel once. How to get each unit comes from the in-game banners where we could see it, otherwise from creators; No source found means nobody we checked covered it.
- Sample
- 10 units: 5 that slow, 2 that stall without a slow and 3 that stun.
- Time range
- UPD 21 creator videos and threads from November 1 to 12, 2026
- Limits
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- Effects come from creator videos, not our own test runs.
- Rows backed by a single creator say so in the Sources column; treat them as leads.
- Units missing from the table may still slow enemies; nobody we checked covered them.
Our take
- If you own none of these units, start with Operator. Creators place it on the gem banner and say its evolution only needs repeated Puppet Portal clears, while Snow Reaper (Final) asks for Dungeon runs.
- Do not count on Armored Crusader as your slow. Its slow is 20%, two of the four creators covering it call the slow weak, and one video warns that it gets in the way of your other slows.
The best of the Anime Adventures slow units in UPD 21 is Snow Reaper (Final), the slow creators recommend most. Operator and Shadowgirl (Time Traveller) stall enemies without a slow, and Fishi (Obsession) stuns them. UPD 21 arrived on November 1, 2026; for overall unit strength, see the anime adventures tier list.
Slow, stun or stall
Slow, stun and stall side by side
The chart at the top of this section shows one example of each kind.
- Slow: Snow Reaper (Final) uses its active, Gale of the Moon, to slow enemies in range and stack chill on them. At six stacks an enemy freezes and takes an extra hit equal to the unit’s damage stat.
- Stun: Fishi (Obsession) wears down enemy sanity, and an enemy at full insanity is stunned.
- Stall: Operator’s Scramble teleports enemies in range back along the path by half of that range.
The best slow unit: Snow Reaper (Final)
Snow Reaper (Final) (creators call it Rukia) is the slow UPD 21 creators recommend most. Four of the videos we compared rank it near the top of the support picks.
The catch is upkeep. Two creators explain that the slow runs on a bar that drains by 2.5 every half second while active and must be refilled. One of them finds it more hands-on than Shadowgirl.
Three creators say the Final form comes from Dungeons. The base Snow Reaper sat in the Special banner Legendary list at capture time on November 3, 2026, at 7.69% of the Legendary rate. One creator guesses the Final form will become limited after UPD 21. If Dungeons are within reach, do not wait.
For traits, commenters in one thread say Unique suits damage, but a support build wants range, such as Sniper, to keep slow and freeze going across 3 placements; Unique allows only 1 placed.
Stall without a slow: Shadowgirl and Operator
Shadowgirl (Time Traveller) stops time for every enemy in its range when placed, and every 15 seconds at later upgrades. Of the three videos covering it, one likes it against fast Summer enemies and another notes it runs on auto. We found no source for how to get it.
A pair of videos compare it with Snow Reaper (Final): one says many players rate Snow Reaper the better all-round staller, the other calls Shadowgirl easier because it runs on auto. Pick Shadowgirl if you would rather not manage an ability bar.
Operator (creators call it Law) teleports enemies in range back by 50% of its range, and it can hit the same enemy three times. Three independent creators call it the pick when a team needs more stalling than damage, including Infinity Castle and leaderboard runs. It is also the easiest to get: it sits on the gem banner and evolves through repeated Puppet Portal clears.
Calm Killer, on the Special banner Mythic list at capture time on November 3, 2026, rewinds every enemy on the map by 5 seconds, according to a single video, mostly in Infinite and long runs.
Stun units: Fishi, Illusionist and Menace
Fishi (Obsession) stuns; it does not slow. Three creators agree that an enemy at full insanity loses 35% of its max HP and is stunned, bosses included. Sources conflict on the rest: the stun lasts 3.5 seconds in one video and about 3 in another, and one reads the 35% as a share of Fishi’s damage.
Fishi is a limited Summer unit, a Featured Mythic on the Summer banner at capture time on November 3, 2026.
Illusionist (Transcended) (creators call it Aizen) has the widest stun: placing it stuns every enemy on the map for 5 seconds, bosses included, across all three videos that cover it.
Menace (Terror) (creators call it Stain) brings a 2-second stun on a 20-second cooldown, per two videos. Treat it as a top-up stun, not a stall plan.
Slows against flying and Soaring enemies
As read from the patch notes shown in videos, UPD 21 lets every unit attack flying enemies, but a ground attack that could not hit flying before deals 50% less damage to them and cannot stun or slow them. Check how your control unit reaches fliers before a flying-heavy stage. See anime adventures enemy types for both kinds of flyer.
For Soaring enemies we have one source. It says Operator’s Scramble moves ground and flying enemies but not Soaring ones, while Shadowgirl’s time stop does reach Soaring. The patch-note rule is about ground attacks and the time stop is an active ability, so the two need not clash. We have not confirmed either claim.
Reliable Student (creators call it Koichi) is disputed. One video names it among the best slow supports, at 80% slower by later upgrades. Another calls it useless now, since its old job was slowing flying units. Do not summon for it as a slow until that settles.
How to pair slow units
One creator’s stall core is Snow Reaper (Final) with Operator: the rewind plus a good slow, with an okay damage dealer, clears nearly every stage in that video.
Watch for overlap. Armored Crusader (creators call it Darkness) slows by 20% and pulls enemies toward the center of its attack circle, but two of the four creators covering it call the slow weak. One source reports that this slow interferes with your other slows, while Calm Killer’s rewind does not. On paper, a rewind or a stun makes a safer second control slot than another slow.
For the damage side, our anime adventures best team guide covers which units to build around.
Summer Event storms stun your own units
A single video says stormy Summer Event weather cuts your range by 30%, and every 10 seconds lightning stuns the unit with the most yen spent on it for 3 seconds. Farms are safe. The anime adventures summer event guide covers the rest.
Anime Adventures Slow Units: FAQ
What are the best slow units in Anime Adventures?
Snow Reaper (Final) is the slow creators recommend most in UPD 21. It slows enemies in its range and freezes them at six chill stacks. Shadowgirl (Time Traveller) and Operator are the main stall picks, and Shadowgirl is easier to run than Snow Reaper because its time stop works on auto.
Which units stun enemies in Anime Adventures?
Three units in our table stun. Placing Illusionist (Transcended) freezes the whole map in a 5-second stun. Fishi (Obsession) stuns an enemy at full insanity, bosses included. Menace (Terror) has a 2-second stun on a 20-second cooldown.
Do slows work on flying enemies in Anime Adventures?
Not from every unit. As read from the patch notes shown in videos, ground attacks that could not hit flying enemies before UPD 21 now deal 50% less damage to them and cannot stun or slow them. Soaring enemies are a separate case: single sources say Shadowgirl's time stop reaches them and Operator's Scramble does not.
How do you get Snow Reaper (Final) in Anime Adventures?
Three creators say the Final form comes from Dungeons. The base Snow Reaper was in the Special banner Legendary list at capture time on November 3, 2026. A creator expects Snow Reaper (Final) to turn limited after UPD 21, but that is a guess, not an announcement.
Is Shadowgirl or Snow Reaper better for stalling?
The two videos that compare them lean toward Snow Reaper (Final) as the stronger all-round staller. Shadowgirl (Time Traveller) is easier to use, since its time stop can run on auto, while Snow Reaper's slow drains a bar that you have to manage.
Is Reliable Student still a good slow unit in Anime Adventures?
Sources disagree. One video calls Reliable Student one of the best slow supports, with an 80% slow at later upgrades. Another says it lost its job in UPD 21, because its old role was slowing flying units and every unit can now hit flying enemies.