Guardian Scalelord [March of the Machine Commander]

Set: March of the Machine Commander Type: Creature — Dragon Rarity: Rare Cost: {4}{W} 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.)FlyingWhenever this creature attacks, return target nonland permanent card with mana value X or less from your graveyard to the battlefield, where X is this creature's power.