Swift: Back to 2 in the Spit, out of the Pelt
If I can get around into flanking position without biting a ton of AoOs, he's going to do that (drawing the MW Dagger if its not out already). Preferably one on the end so he flanks two of the crabs.
If I can't get around without taking AoOs (can't really tumble in water unless he's actually swimming I'm guessing), he'll Spit into Melee.
Dagger:
M.Attk: [roll0] +4 for a Masterwork Dagger/Str/BAB, +2 if Flanking
[Critical Threat! Yay, no more Undead!]
Piercing: [roll1]
SnA: [roll2]
Crit Confirm:
http://www.giantitp.com/forums/showt...7#post10796957
Spit:
RTA: [roll3]
Acid: [roll4]