Eradicator, Vowing Saber Dragon "Reverse" (BT12/S03EN) [Binding Force of the Black Rings]

[ACT](VC) Limit Break 4 (This ability is active if you have four or more damage):[Counter Blast (2) & Choose two of your rear-guards with "Eradicator" in its card name, and lock them] Your opponent chooses two of his or her rear-guards, retires them, and this unit gets [Power]+10000 until end of turn. (The locked card is turned face down, and cannot do anything. It turns face up at the end of the owner's turn.) [CONT](VC):If you have a card named "Eradicator, Vowing Sword Dragon" in your soul, this unit gets [Power]+2000. [CONT](VC/RC): Lord (If you have a unit without a same clan as this unit, this unit cannot attack)