Annihalator 3, Fear, Haste, Menace, Ward — Sacrifice a permanent

Whenever a nontoken creature is put into a graveyard from anywhere, put an Eyeball counter on The Fear Chest.

Artifact spells you cast cost {x} less to cast where X is the amount of Eyeball counters among permanents you control.

All nonland permanents an opponent controls with converted mana cost half or less than the amount of eyeball counters among permanents you control enter the battlefield tapped.

Awaken — Pay 3 life. (Pay 3 life: This Mimic becomes a Shapeshifter artifact creature until end of turn.)

The Fear Chest can be your commander.