Cleon
Legend
Hmmm, what are the rules for a bound character? Use Rope just says the checks are opposed Escape Artist vs Use Rope checks, but it doesn't say the mechanical effects of being bound. Anyway, I guess we should allow it to attack with tentacles when bound, at least if the tentacles aren't specifically bound.
IIRC a bound character is Entangled (q.v.), so can attack with a -2 penalty.
Masterwork manacles have a DC 35 Escape Artist check to get out. So maybe a +20 bonus to Escape Artist given Dex 10? (It doesn't make a lot of sense to me that one of these would invest ranks in Escape Artist.) Break DC is 28 for masterwork manacles, so maybe +10 to the Str check?
I was thinking it could get a racial bonus to both Escape Artist and Strength checks by becoming malleable (bonus to Escape Artist) and exerting pressure by swelling against its bonds (bonus to Strength). I agree it's unlikely to have any ranks in Escape Artist.
We know the DCs, so if we follow the "10% chance per round of breaking free" of the original, that'll set the necessary bonus:
Normal Manacles
Escape Artist DC 30 => skill modifier +9 with Dex 10 => racial bonus +9
Break DC 26 => Strength modifier +5 with Str 15 => racial bonus +3
Masterwork Manacles
Escape Artist DC 35=> skill modifier +14 with Dex 10 => racial bonus +14
Break DC 28 => Strength modifier +7 with Str 15 => racial bonus +5
Hmm... so the simplest solution is a +5 racial bonus to Strength checks to break free of bonds. The Escape Artist bonus, if any, ought to be around +9 to +14.
How about giving its escape rolls racial bonuses of +5 to Strength checks and +10 to Escape Artist checks?