Avyra, Lady of Blood

: Whenever a creature deals combat damage or a creature is dealt combat damage, put X loyalty counters on Avyra.
: Whenever a loyalty counter is put on or removed from Avyra, up to X target creatures each get +X/+X and deathtoutch until end of turn.
0: Until end of turn, Avyra becomes a 2/1 Human Cleric creature with hexproof and "This creature can't be blocked."