Sans, the Avenger

Whenever Sans, the Avenger would be dealt damage, destroyed, or exiled, flicker it instead.
Tap this creature: Sans, the Avenger deals 7 damage to target creature. Activate this ability only if there are seven or more creature cards in your graveyard and this creature is untapped.
{1}: Sans, the Avenger deals 1 damage to each other creature. Activate this ability only if you control no other creatures.