AT-ST Walker

Trample, reach, crew 2

When AT-ST Walker enters the battlefield, choose one —
• Destroy target creature with power 2 or less.
• Destroy target artifact or enchantment.

Whenever AT-ST Walker deals combat damage to a player, add {C}{C}.

As long as AT-ST Walker is on the battlefield, you don't lose unspent mana as steps, phases, or turns end.