Tiderian, Keeper of the Void

Indestructible, protection from colored spells.
Whenever an opponent casts a colored spell you
may pay {2}. If you do counter that spell then
exile it and put a void counter on Tiderian,
Keeper of the Void.
When there are ten counters on Tiderian, Keeper
of the Void remove them. You may play each
spell exiled this way without paying it's mana
cost.