Ral`s Airbarge

Treat this artifact as if it where an artifact creature.
Crewed Vessel ( When this artifact enters the battlefield, choose up to 10 creatures under your control, those creatures can`t attack or block, and take damage whenever Ral`s Airbarge takes damage, the combined toughness of chosen creatures is the toughness of Ral`s Airbarge, whenever Ral`s airbarge is destroyed, destroy all chosen creatures )