The Haunt of Hightower

Flying, lifelink
Whenever The Haunt of Hightower attacks,
defending player discards a card.
Whenever a card is put into an opponent's
graveyard from anywhere, put a +1/+1
counter on The Haunt of Hightower.
And at sunset the great tower and tapering steeple
loomed blackly against the flaming sky.