Tick Tock Clock

Crank (As this enters the arena, you may remove a steam counter from it. If you do, gain an action point.)
This enters the arena with a steam counter. At the start of your turn, destroy this and it deals 1 damage to you unless you remove a steam counter from it.
When a Mechanologist attack action card you control hits a hero, destroy this and up to 2 other items in the arena. Then deal X damage to them, where X is the number of items destroyed this way.