Blastmon (BT10-070) - Xros Encounter

[Rush] (This Digimon may attack the turn it was played).
[On Play] If this Digimon has 3 digivolution cards, [Blitz]. (If your opponent has 1 or more memory, this Digimon may attack).
[Opponent's Turn] [Once Per Turn] When an opponent's Digimon attacks, by trashing 1 of this Digimon's digivolution cards, delete 1 of your opponent's level 4 or lower Digimon.