Sin, Unending Cataclysm
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.
How Sin decks play in EDH
Sin, Unending Cataclysm is a Simic commander in blue and green costing 5GU, and its legendary creature - leviathan avatar line shapes the whole deck around it. It cares about +1/+1 counters, so counter-doubling effects and creatures that grow on their own carry the deck. Artifacts drive the deck, so cheap mana rocks and artifact recursion do double duty. The cards below are the ones Sin, Unending Cataclysm decks actually play most often, grouped by the job they do.
Most-played cards
20 cards · about $64.72Play rates from EDHREC. Prices from Scryfall, refreshed daily.
Card draw (2)
Creatures (8)
Synergy & payoffs (10)
Build the full 100
Grimoire generates a complete, Commander-legal Sin, Unending Cataclysm decklist with a written strategy, a full mana base and live prices — from the whole card pool, or only from cards you already own.
Start with SinSin deck questions
What colours can I use in a Sin, Unending Cataclysm deck?
Sin, Unending Cataclysm has a Simic colour identity, so every card in the deck must be blue and green or colourless. That includes mana symbols in rules text, not just casting cost.
What are the best cards for Sin, Unending Cataclysm?
The cards played most often in Sin, Unending Cataclysm decks include Dancing from Dark to Dawn, Thranduil's Company, Old Fat Spider Can't See Me. The full list of staples above is grouped by the job each card does, so you can see the deck's skeleton rather than just a pile of names.
How much does a Sin, Unending Cataclysm deck cost?
The 20 most-played cards shown above come to roughly $64.72 at current market prices. A complete 100-card build costs more, and Grimoire can generate a budget version instead if you set a price ceiling.
Can I build a Sin, Unending Cataclysm deck from cards I already own?
Yes. Import your collection into Grimoire and choose "my cards" when you build. The generator will only use cards you actually own, and the Missing Cards page shows what you would need to buy to finish any list.