Tainted Isle — Magic: The Gathering card

Tainted Isle

Land

{T}: Add {C}.

{T}: Add {U} or {B}. Activate only if you control a Swamp.

Set Duskmourn: House of Horror Commander
Rarity Uncommon
Mana Value 0
Artist Alan Pollack
Collector # 303

Why Play Tainted Isle

Budget-conscious Dimir decks often turn to Tainted Isle as an affordable dual land option that can produce both blue and black mana reliably. The key requirement is controlling at least one Swamp, making fetch lands like Polluted Delta particularly valuable for enabling the colored mana production immediately. Early game sequencing matters significantly - you'll want to prioritize basic Swamps or other Swamp-typed lands in your opening hands to unlock the land's full potential by turn two or three.

Format Notes

Commander represents this land's strongest format, where the singleton nature makes budget dual lands more attractive and the longer games provide time to establish the Swamp requirement. Legacy and Vintage see minimal play due to superior options like Underground Sea and other premium dual lands being available. The card has never faced banning issues and remains a solid choice for casual competitive Commander pods where expensive manabase investments aren't necessary.

Combos & Synergies

Urborg, Tomb of Yawgmoth creates perfect synergy by turning all your lands into Swamps, instantly enabling Tainted Isle's colored mana production regardless of your other land choices. Fetchlands like Polluted Delta and Bloodstained Mire provide immediate Swamp access while thinning your deck. Domain strategies appreciate the land typing that Urborg provides, making Tainted Isle contribute to multicolored strategies beyond just Dimir builds.