Thoughtlace

Target spell or permanent becomes blue. (Mana symbols on that permanent remain unchanged.)

Mountain

{1}: The next time a blue source of your choice would deal damage to you this turn, prevent that damage.

Target spell or permanent becomes red. (Its mana symbols remain unchanged.)

{1}: The next time a white source of your choice would deal damage to you this turn, prevent that damage.

{1}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Target spell or permanent becomes green. (Mana symbols on that permanent remain unchanged.)

{1}: The next time a green source of your choice would deal damage to you this turn, prevent that damage.

Target spell or permanent becomes black. (Mana symbols on that permanent remain unchanged.)

{1}: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

Target spell or permanent becomes white. (Mana symbols on that permanent remain unchanged.)