Skolelko, Dream Assassin

{u/b}{u/b}, Discard this: Destroy target creature.
{u/b}, Discard this: Exile up to 2 target tokens.
Flash, evoke {u/b} or {u/b}{u/b}{u/b} or {10}
Battlefield entry — For each mana spent
to cast this, put a -1/-1 counter on
target permanent.