When Calamity Gear enters it deals X damage to each creature without flying.

{T}, Discard a card: Calamity Gear deals 2 damage to any target you gain 2 life.

{T}, Pay 2 life: Create a 2/2 white human merchant creature token with vigilance.

{T}, Sacrifice a creature: Return target artifact card from your graveyard to the battlefield.

{T}, Sacrifice an artifact: Draw two cards.