Off-color lands in EDH
Asked by CheeseBro 8 years ago
say i am playing a B/R EDH deck, and i cast Oblivion Sower, and i hit a forest and an island. can i still use those to tap for mana (which would be used on colorless cost obviously)? i have seen in other websites that because the land has a different color identity than my commander, i cant use it or tap it for mana. is this true?
Epochalyptik says... Accepted answer #3
The Commander format rules define a replacement effect that replaces the event "add [mana of an off color] to your mana pool" with "add [colorless mana] to your mana pool." Nothing is preventing you from activating the mana ability, but the mana it produces will be colorless if it would have otherwise been outside of your commander's color identity.
You should double check whether anyone saying you can't use the land means to say that t can't be included in the deck. That much is true; you can't put a Forest into a 
deck. But if you gain control of a Forest in game, you can absolutely activate its ability.
Tl;dr: Forests would produce 
in game if you're playing a deck.
October 3, 2015 8:14 p.m.
AwesomeName says... #4
Yes, you can use an opponent's Forest, but it will tap for if you're commander is not green.
903.9. If mana would be added to a players mana pool of a color that isnt in the color identity of that players commander, that amount of colorless mana is added to that players mana pool instead.
I think what got you confused was:
903.5d A card with a basic land type may be included in a Commander deck only if each color of mana it could produce is included in the commanders color identity.
However, this rule does not apply to basic lands you get during game, it only applies while building your deck.
Trockenmatt says... #1
You can use it, but the colored mana will be immediately turned into colorless mana.
October 3, 2015 7:58 p.m.