I understand, but You know that combo isn't so good as simply card. When You have water deck, You probably haven't got Shockwave... When You play Air deck, You haven't got IceBolt. So in my opinion these cards aren't good PC. What is more, we can only destroy weapon. What can we do with Shields, EH, SoG etc...
Also remember, that You must have this 2 cards in hand, not only in deck
Buff is good, but I think that this should work better...