Chris, Probable Murderer

: Whenever a Squirrel, Spider, Rat, or Insect dies, you may mill two cards. Chris, Probable Murderer can be your commander.
+1: You may sacrifice a creature, if you do, draw a card.
-6: Exile all creature cards in your graveyard. For each of those creatures, create a 1/1 green and black Squirrel creature token with deathtouch.