Eradicator, Vowing Saber Dragon "Яeverse"

(This ability is active if you have four or more damage):[ 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, retire them, and this unit gets +10000 until end of turn. (The locked card is turned face down, and cannot do anything. It turns face up at end of the owner's turn.) :If you have a card named "Eradicator, Vowing Sword Dragon" in your soul, this unit gets +2000. /:Lord (If you have a unit without a same clan as this unit, this unit cannot attack)