Sin, Unending Cataclysm is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.
Official card text
Flying, trample As Sin enters, remove all counters from any number of artifacts, creatures, and enchantments. Sin enters with X +1/+1 counters on it, where X is twice the number of counters removed this way. When Sin dies, put its counters on target creature you control, then shuffle this card into its owner's library.
Complete guide
Sin, Unending Cataclysm is a massive Leviathan Avatar that lives up to its name by consuming the essence of the battlefield. By stripping away counters from your opponents or your own permanents, it grows into a colossal threat that ensures its legacy continues even after death.
Feeding the Leviathan
As Sin enters the battlefield, you choose any number of artifacts, creatures, and enchantments and remove all counters from them. This is not a triggered ability, so it cannot be responded to once Sin begins to enter. For every counter removed this way, Sin enters with two +1/+1 counters. This counts all types of counters, including ability counters and lore counters, not just +1/+1 counters.
Resolution and Death
When Sin dies, its triggered ability targets one creature you control. Upon resolution, you put a number of counters of each type that Sin had when it died onto that target. Note that this is not moving the counters, but creating new ones of the same type and quantity. Finally, Sin is shuffled back into its owner's library, allowing it to return later in the game.
Strategic Considerations
Be cautious when Sin's death trigger is on the stack. If the target creature you control leaves the battlefield or becomes an illegal target before the ability resolves, the entire ability fails. In this scenario, you will not get any counters, and Sin will remain in the graveyard instead of being shuffled back into your library.
When to Play Sin
Sin is most effective when the board is cluttered with +1/+1 counters or Sagas. Since it removes counters from 'any number' of permanents, you can selectively strip your opponents' threats while leaving your own beneficial counters alone, or consume everything to create a one-hit-kill attacker with flying and trample.
Interaction examples
Craterhoof BehemothIf you control a Craterhoof Behemoth that was buffed by its own ability, Sin can enter the battlefield and remove any counters present on other permanents. While Craterhoof Behemoth's +X/+X isn't a counter, if it had +1/+1 counters from other sources, Sin would double those onto itself. Once Sin is in play, you have two massive trampling threats that can end the game immediately.
Hullbreaker HorrorIf your opponent attempts to cast a spell to destroy Sin, Unending Cataclysm, you can cast Hullbreaker Horror in response. If Sin does die, its ability triggers to pass its counters to Hullbreaker Horror. If you successfully resolve the death trigger, Hullbreaker Horror will receive all the counters Sin had, potentially becoming a massive flying, trampling threat itself while Sin shuffles safely back into your deck.
Guide written with AI from the official text and rulings. Official English text prevails.
How it works : Sin, Unending Cataclysm
Original English text — Wizards of the Coast / Scryfall
No additional ruling has been published for this card.
Popular combos
Real combos played by the community, sorted by popularity.
Sin, Unending Cataclysm + Body of Research + Sage of Hours
- 1Cast Body of Research by paying
, creating a 0/0 Fractal creature token and putting a number of +1/+1 counters on it equal to your deck size. - 2Cast Sin either from your hand or from the command zone by paying
plus commander tax if applicable. As it enters, remove all the counters from the Fractal and put twice that many +1/+1 counters on Sin. - 3Kill Sin. When it dies, it second ability triggers, putting its counters on Sage of Hours and shuffling Sin into your library.
- 4Activate Sage of Hours by removing all +1/+1 counters from it, causing you to get an extra turn for each five +1/+1 counters removed from it.
Sin, Unending Cataclysm + Verdant Succession + Phyrexian Altar
- 1Activate Phyrexian Altar by sacrificing Sin.
- 2When Sin dies, it and Verdant Succession trigger.
- 3Resolve the Sin trigger, moving any counters from it onto another creature you control, and then shuffling Sin into your library.
- 4Resolve the Verdant Succession trigger, searching your library for Sin and putting it onto the battlefield.
- 5Repeat.
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Sin, Unending Cataclysm + Viscera Seer
- 1Activate Viscera Seer by sacrificing the additional creature.
- 2When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
- 3Resolve the Viscera Seer ability.
- 4Activate Viscera Seer by sacrificing Sin.
- 5When Sin dies, it triggers twice.
- 6Resolve the first trigger, returning Sin from your graveyard to the battlefield with a -1/-1 counter on it. As Sin enters, remove the -1/-1 counter from the creature sacrificed in step 1, causing Sin to enter with a +1/+1 counter on it instead.
- 7Resolve the second Sin trigger, putting the counters it had on it when it was sacrificed onto a creature you control and failing to shuffle it into your library as it's no longer in your graveyard.
- 8Resolve the Viscera Seer ability from step 4.
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Sin, Unending Cataclysm + Shilgengar, Sire of Famine
- 1Activate Shilgengar by sacrificing the additional creature.
- 2When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
- 3Resolve the Shilgengar ability.
- 4Activate Shilgengar by sacrificing Sin.
- 5When Sin dies, it triggers twice.
- 6Resolve the first trigger, returning Sin from your graveyard to the battlefield with a -1/-1 counter on it. As Sin enters, remove the -1/-1 counter from the creature sacrificed in step 1, causing Sin to enter with a +1/+1 counter on it instead.
- 7Resolve the second Sin trigger, putting the counters it had on it when it was sacrificed onto a creature you control and failing to shuffle it into your library as it's no longer in your graveyard.
- 8Resolve the Shilgengar ability from step 4.
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Sin, Unending Cataclysm + Umbral Collar Zealot
- 1Activate Umbral Collar Zealot by sacrificing the additional creature.
- 2When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
- 3Resolve the Umbral Collar Zealot ability.
- 4Activate Umbral Collar Zealot by sacrificing Sin.
- 5When Sin dies, it triggers twice.
- 6Resolve the first trigger, returning Sin from your graveyard to the battlefield with a -1/-1 counter on it. As Sin enters, remove the -1/-1 counter from the creature sacrificed in step 1, causing Sin to enter with a +1/+1 counter on it instead.
- 7Resolve the second Sin trigger, putting the counters it had on it when it was sacrificed onto a creature you control and failing to shuffle it into your library as it's no longer in your graveyard.
- 8Resolve the Umbral Collar Zealot ability from step 4.
Sin, Unending Cataclysm + Verdant Succession + Altar of Dementia
- 1Activate Altar of Dementia by sacrificing Sin.
- 2When Sin dies, it and Verdant Succession trigger.
- 3Resolve the Sin trigger, moving any counters from it onto another creature you control, and then shuffling Sin into your library.
- 4Resolve the Verdant Succession trigger, searching your library for Sin and putting it onto the battlefield.
- 5Resolve the Altar of Dementia ability.
- 6Repeat.
Deathrender + Heirloom Blade + Ashnod's Altar + Sin, Unending Cataclysm
- 1Activate Ashnod's Altar by sacrificing Sin, adding
. - 2When Sin dies, it, Heirloom Blade and Deathrender trigger.
- 3Resolve the Sin trigger, shuffling it into your library.
- 4Resolve the Heirloom Blade trigger, causing you to reveal cards from the top of your library until you reveal a creature that shares a card type with Sin and put it into your hand
- 5Resolve the Deathrender trigger, putting the creature from your hand onto the battlefield and attaching Deathrender to it.
- 6Activate Heirloom Blade's equip ability by paying
, attaching it to the creature. - 7Repeat.
Sin, Unending Cataclysm + Verdant Succession + Blasting Station
- 1Activate Blasting Station by tapping it and sacrificing Sin.
- 2When Sin dies, it and Verdant Succession trigger.
- 3Resolve the Sin trigger, moving any counters from it onto another creature you control, and then shuffling Sin into your library.
- 4Resolve the Verdant Succession trigger, searching your library for Sin and putting it onto the battlefield.
- 5When Sin enters the battlefield, Blasting Station triggers, untapping Blasting Station,
- 6Resolve the Blasting Station ability from step 1.
- 7Repeat.
Legal formats
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