Quasar, Heroic Spirit

Flying, Shadow (This creature can block or
be blocked by only creatures with shadow.)
{t}{1}{w} - If this card were to be the target of
a instant or a sorcery spell, tap card to counter
the spell. If the spell were to do damage to
Quasar, Heroic Spirit add a +1 counter to
this card equal to the mana cost of the spell.
Once Quasar attacks remove all counters
from this card.