Will, Favored by the Gods

: Will, Favored by the Gods can use one of his abilities on the opponents turn and with flash as long as you have 6 or more cards in your graveyard
+1: Target creature gets -3/-0 and it's activated abilities can't be activated.
-4: Counter target spell unless it's controller pays X, where X is the number of loyalty counters left on Will, Favored by the Gods