Thassa, Deep-Dwelling
Indestructible As long as your devotion to blue is less than five, Thassa isn't a creature. At the beginning of your end step, exile up to one other target creature you control, then return that card to the battlefield under your control. {3}{U}: Tap another target creature.
How Thassa decks play in EDH
Thassa, Deep-Dwelling is a mono-blue commander costing 3U, and its legendary enchantment creature - god line shapes the whole deck around it. Its ability is narrow enough that the deck is usually built to protect it and repeat the effect, rather than to go wide. The cards below are the ones Thassa, Deep-Dwelling decks actually play most often, grouped by the job they do.
Most-played cards
20 cards · about $50.75Play rates from EDHREC. Prices from Scryfall, refreshed daily.
Card draw (4)
Removal (1)
Counterspells (1)
Creatures (10)
Synergy & payoffs (4)
Build the full 100
Grimoire generates a complete, Commander-legal Thassa, Deep-Dwelling 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 ThassaThassa deck questions
What colours can I use in a Thassa, Deep-Dwelling deck?
Thassa, Deep-Dwelling has a mono-blue colour identity, so every card in the deck must be blue or colourless. That includes mana symbols in rules text, not just casting cost.
What are the best cards for Thassa, Deep-Dwelling?
The cards played most often in Thassa, Deep-Dwelling decks include Roll-Roll-Roll-Roll, Seasoned Cryomancer, Samut, Tyrant of Naktamun. 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 Thassa, Deep-Dwelling deck cost?
The 20 most-played cards shown above come to roughly $50.75 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 Thassa, Deep-Dwelling 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.