Mad Pyro

(You can only have up to 9 Mercenary in your deck)
Whenever Mad Pyro deals damage your opponent creates a red Back Burn token attached to target Creature with the ability at the end of your turn place a -0/-1 counter on this creature
whenever Mad Pyro blocks a creature all damage from that creature to another target Creature or player, if the blocked creature holds an artifact that artifact returns to owners hand