Xerjes Wyvern

+2: Put X +1/+1 counters on Wolf and Werewolf creatures you control were X is the number of Wolf and Werewolf creatures on the Battlefiel.
0: Create X Werewolf 2/2 creature tokens were X is the number of Wolf and Werewolf creatures on the Battlefield.
-7: You get an emblem with Creatures you control have Haste and Whenever this creature gets tapped deals damage equal his power to target creature.