1) AMF, even with NSC it does smallish damage, nowhere near 1/2 HP.
Sure. When you face 100% AMF. But you could always trian your Decay over base...
2) GA, works great vs a decay enchanter as they typically have lower hp, esp if you use DM to nuke AS
What about facing a dedicated Decay Mage, with HP. And maybe even DM to take care of GA...
3) 20 hp blocker minion in front. Works just perfectly for me.
A wicked idea I totally champion.
Be that as it may, if you don't face AMF, Decay can quite easily take millions and millions of HP away, *with nothing to reduce the amount used*.
That's got to be hella overpowered.
It literally forces you to use AMF. As if you don't, there's *nothing* to stop Decay doing millions upon millions of damage to you.
Much the same could be said about the RBF damage and using High AC to stop it (Which works very well. JS could show some good examples.)
If only we could get enough Leadership to give Decay a 100% Boost... The moment that happens, and any minion in the game is One Hit Killed (given enough Trained Decay and a phat pair of NSC to reduce AMF to zero), I'm sure it'll get 'hot fixed'. ;)
(Disclaimer: I don't think Decay is overpowered)