Sinchra, The Eternal Supremacy

{p/u}, {t}: Counter target spell unless its controller
pays {p/c}{p/c}. ({p/c} can be paid with either {1} or 2 life.)
Whenever a spell or ability you control
counters a spell an opponent controls,
exile that spell.
You may cast spells exiled with Sinchra,
and you may spend mana as though it
were any color to cast them.