Beat the Giddeus BCNM 30 on our first try. We had a SAM, DRG, and WHM. SAM brought 3 hi-potions, I (WHM) brought 2 Yagudo Drinks. We didn't set any records, but we won without much problem. I did have to use Benediction, but I think one more Yagudo drink would've covered that.
We got crappy
I thought all ENMs already had a level cap on them (just some cap at 75) hence why buffs are lost upon entry. Think KS99s, Bahamut fights, Ark Angels ...