Hydro-Man, Fluid Felon

Whenever you cast a blue spell, if Hydro-Man is a creature, he gets +1/+1 until end of turn. At the beginning of your end step, untap Hydro-Man. Until your next turn, he becomes a land and gains "{T}: Add {U}." (He's not a creature during that time.)
How Hydro-Man decks play in EDH
Hydro-Man, Fluid Felon is a mono-blue commander costing UU, and its legendary creature - elemental villain 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 Hydro-Man, Fluid Felon decks actually play most often, grouped by the job they do.
Most-played cards
20 cards · about $17.55Play rates from EDHREC. Prices from Scryfall, refreshed daily.
Card draw (8)
Removal (1)
Counterspells (1)
Creatures (4)
Synergy & payoffs (6)
Build the full 100
Grimoire generates a complete, Commander-legal Hydro-Man, Fluid Felon 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 Hydro-ManHydro-Man deck questions
What colours can I use in a Hydro-Man, Fluid Felon deck?
Hydro-Man, Fluid Felon 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 Hydro-Man, Fluid Felon?
The cards played most often in Hydro-Man, Fluid Felon decks include Plunder the Trollshaws, Key to the Side-Door, 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 Hydro-Man, Fluid Felon deck cost?
The 20 most-played cards shown above come to roughly $17.55 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 Hydro-Man, Fluid Felon 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.



















