Aidan, Lone Executioner

Shroud
Whenever an ability triggered by Aidan, Lone Executioner causes one or more creatures to enter the graveyard, put a +1/+1 counter on Aidan, Lone Executioner. At the start of your turn sacrifice all creatures you control except
for Aidan, Lone Executioner. When Aidan, Lone Executioner attacks, you may destroy up to two target creatures with toughness less
than Aidan, Lone Executioner's power.