Rainbow Vale
Land
Oracle Text
{T}: Add one mana of any color. An opponent gains control of this land at the beginning of the next end step.
Watch Out
Mana abilities don't use the stackRules Note
If this card's activated ability produces mana and doesn't target, it's a mana ability. Mana abilities resolve immediately without using the stack — opponents can't respond to them. However, abilities that target (even if they produce mana) aren't mana abilities.