Harnessed Power

Indestructible
Whenever a player casts a spell, put a -1/-1 counter on target creature.
{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}: You gain 35 life.
{8}{t}: counter up to 15 target spells.
{w}{u}{b}{r}{g}: Add {u}{r}{5} to your mana pool.
{x}: Draw X cards.
{t}: Target opponent loses 2 life.