Mixed Deletor, Keios (RR)

[AUTO]:[Counter Blast (2)-cards with Deletor in their card names & Choose two cards from your hand, and discard them] When this unit is placed on (VC), you may pay the cost. If you do, delete all of your opponent's vanguards, choose up to 2 of your opponent's rear guards, and lock them. (The deleted unit is turned face down, its power becomes 0 and it loses all text. It turns face up at the end of the owner's turn) (The locked card is turned face down, and cannot do anything. It turns face up at the end of the owner's turn.)
[AUTO](VC): When this unit attacks a vanguard, this unit gains [Power]+2000 until the end of that battle.