Grasho Kal, the Lake's Grasp

All creatures able to block Grasho Kal do so.
Whenever Grasho Kal becomes blocked by one
or more creatures, return the blocking creature
with the lowest toughness to its owner's hand
and put a +1/+1 counter on Grasho Kal. It gains
protection from that creature's creature types
until the beginning of your next upkeep.
She welcomes her victims with the drowned voices of
their loved ones.