Effect
3 Level 4 monsters Once per turn: You can detach 1 material from this card, then activate 1 of these effects. Each effect can only be used once while this card is face-up on the field. ● Target 1 card your opponent controls; return that target to the hand. ● Send 1 random card from your opponent's hand to the GY. ● Target 1 card in your opponent's GY; banish that target.
The monster effect of "Steelswarm Roach" is an Ignition Effect. (When activating the effect, detach 1 Xyz Material from this card as a cost.)
The monster effect of "Steelswarm Roach" can be activated once per turn, and you can only activate one of the three "●" effects. Furthermore, each "●" effect can only be selected once while "Steelswarm Roach" is face-up on the field. (You choose which "●" effect to activate at the time of activation.)
The effect "● Target 1 card your opponent controls; return it to the hand" targets 1 card on your opponent's field.
The effect "● Your opponent discards 1 random card" does not target.
The effect "● Target 1 card in your opponent's Graveyard; banish it" targets 1 card in your opponent's Graveyard.
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