Ultros, Obnoxious Octopus
Whenever you cast a noncreature spell, if at least four mana was spent to cast it, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.) Whenever you cast a noncreature spell, if at least eight mana was spent to cast it, put eight +1/+1 counters on Ultros.
How Ultros decks play in EDH
Ultros, Obnoxious Octopus is a mono-blue commander costing 1U, and its legendary creature - octopus 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. The cards below are the ones Ultros, Obnoxious Octopus decks actually play most often, grouped by the job they do.
Most-played cards
20 cards · about $23.62Play rates from EDHREC. Prices from Scryfall, refreshed daily.
Ramp (2)
Card draw (6)
Counterspells (1)
Creatures (4)
Synergy & payoffs (7)
Build the full 100
Grimoire generates a complete, Commander-legal Ultros, Obnoxious Octopus 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 UltrosUltros deck questions
What colours can I use in a Ultros, Obnoxious Octopus deck?
Ultros, Obnoxious Octopus 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 Ultros, Obnoxious Octopus?
The cards played most often in Ultros, Obnoxious Octopus decks include Uncover the Moon-Letters, Wizard's Staff, Seasoned Cryomancer. 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 Ultros, Obnoxious Octopus deck cost?
The 20 most-played cards shown above come to roughly $23.62 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 Ultros, Obnoxious Octopus 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.