Hypersmurf said:
Ah - my mistake. I thought you were suggesting forty Cleaves into the BBEG, rather than forty chained Cleaves through minions.
Just versus the BBEG: I can see an optimized halfling 16th rogue/4th level fighter character made with WotC rules getting the following attacks:
7 attacks with two weapon fighting and a full attack action (BAB -2/-2/-7/-7/-12/-12/-17)
1 From Expert Tactician at BAB -2
1 From Opportunist at BAB -2
1 Normal AoO at -2
12 AoOs from Great Cleave/Combat Reflexes with a Dexterity of 34 (18 base + 2 race + 5 advances + 5 inherent +6 enhancement) at BAB -2
That is 17 attacks at BAB-2, 2 attacks at BAB -7, 2 attacks at BAB -12 and 1 attack at BAB -17. 24 attacks. Using strength 26 (16 base, +6 enhancement, +4 inherent), weapon finesse, weapon focus, improved critical, weapon specialization, 2 +5 holy small daggers, haste, a wand of (CL 18) divine favor and bless, his expected damage versus an AC 30 BBEG would be 1264.315 damage. Enough to take a fully healthy Tarrasque to -76 hit points, even if it gets full use of its DR. Unless the target gets DR, the odds of him making all his saves versus massive damage are roughly a 2 in 3 chance even if it fails only on a 1.) This uses 12 of a possible 12 feats (7 from levels, 3 from fighter and 2 (3-1) rogue special abilities (1 spent on opportunist)): Power attack, cleave, great cleave, combat reflexes, two weapon fighting, improved two weapon fighting, greater two weapon fighting, expert tactician, weapon focus, weapon specialization, improved critical and weapon finesse.
This, of course, is meaningless drivel, but I had time to spare and a BBEG in my campaign that was already maxed out like this ... (except his daggers are unholy).
Abused to the max, this creates an insane opportunity. Cleaving off of the AoO only accounts for 703.38 of that damage, after all. PCs that set up an encounter correctly will probably have to settle for only a hundred extra damage, but I think even that is enough to be cautious.