Mirror-Style Master [March of the Machine Commander]

Set: March of the Machine Commander Type: Creature — Human Warrior Rarity: Rare Cost: {4}{R}{R} Backup 1 (When this creature enters the battlefield, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.)Whenever this creature attacks, for each attacking modified creature you control, create a tapped and attacking token that's a copy of that creature. Exile those tokens at end of combat. (Equipment, Auras you control, and counters are modifications.)