Mage for Hire

At the beginning of each player's upkeep, that
player gains control of Mage for Hire.
Haste
Mage for Hire can't be blocked.
Mage for Hire must attack each turn if able.
Whenever Mage for Hire attacks or blocks, it's controller takes damage equal to it's power.
At the beginning of your end step, you may
choose to destroy Mage for Hire. If you do, skip
your next turn.