Interesting question whether he automatically fails the Str check. As he has an effective Str score of 0, so in game terms he really has no ability to resist. In addition, the trip attack already has a built in limitation that you can only trip creatures that are one size larger than yourself. So no opposed Str check for the demon; you automatically trip it if you can hit its touch AC. Should have advanced him to Huge sizeThanee said:1st Attack using Improved Trip (+10 touch attack, Strength check should succeed automatically with no real resistance, though maybe you still want to roll something because the demon is so big), then follow-up with +12 (if the demon falls) and another attack at +12 (Haste) as well as her 2nd attack at +7 (prone: AC -4). Damage is 2d6+8+1d6(Starmetal)+6(PA) (assuming Magebane doesn't help here).
Branding Opportunity said:I finally looked more closely at the Magebane ability. I didn't realize it also affects creatures with arcane spell-like abilities. Wow, that's powerful. Everyone and their gnome grandmother has arcane spell-like abilities. Kind of makes all other bane weapons obsolete, and for only a +1 adjustment. Hmmm.