17 V 39

Interrupt

To play this interrupt, you must command Athos IV and six [Maq] personnel. When an opponent plays a non-ship card, discard a card of the same card type from hand to prevent that and place that card on top of its owner's deck.

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You're not one to sneak aboard and attach implosion devices to impulse engines; but, believe it or not, some of your brethren are willing to do such things.