Graud, Terror of the West

Flying, trample
If a card would be put into a graveyard from anywhere, instead exile that card and its owner gains 1 life, then put a feeding counter on Graud, Terror of the West.
Remove all feeding counters from Graud: Target player loses X life and Graud gains +X/+X until end of turn, where X is the number of feeding counters on Graud.
His tastes are not just limited to humans...