[AUTO](VC) Wave-3rd time or more (This ability is active during the specified battles of each turn):[Counter Blast (1)] When this unit attacks a vanguard, you may pay the cost. If you do, choose up to one of your opponent's rear-guards, and retire it.
Marine General of Heveanly Silk, Aristotle, named after a famous philoshiphor, but that's not important. What is important is that as demonstrated in this card, Aqua Force has a new Key Word, that word being Wave. Wave saves text by replacing the clause "When this unit attacks, if it is the 'x' battle of that turn (or more) " with a single word (and some reminder text).