Akshan, the Rogue Sentinel

Double strike, reach
When Akshan, the Rogue Sentinel is on the battlefield and a creature you don't control kills a creature you control, put a Scoundrel token onto
that creature. When Akshan kills a creature with
X Scoundrel tokens, return up to X creatures
from your graveyard and put X +1/+1 tokens on Akshan.
"Not everything happens for a reason. Some things
need to be sorted out."—Akshan