geosapient
Explorer
Depending on the 'arena' you could do well with hired archers. The Druid / wolf would be a decent idea but if others take a potion of fly also the wolf wouldn't have much to do.
If you rp a little up to the place where combat takes place if the arena is outside you could easily set up an ambush. If you put points into disguise and are of the same race as the mercenaries you could fool the others into thinking that you aren't there (or they could waste time looking for you target by target).
So...
Elven Druid
Str 10
Dex 12 (14)
Con 10 (8)
Int 10
Wis 12
Cha 12
This would give you 9-21 hitpoints, +4 to hit with a bow (elven weapon), +4 on a disguise check (3 for cross class 1 for Cha), ability to cast 2nd level spells and a companion (probably wolf still).
If you could get 5 elven archers (2HD +1 base attack +2 dex AC 14 [10 + leather +2 dex]) (these are just random numbers that sound decent to me) at 300gp each (again, not sure of actual figures) you could have them all spread out so it would take a move to get from one to another and they wouldn't be close enough to get hit by the same spell.
That would give 6+ attacks per round and add multiple targets.
If that's not the case then either go with the same druid with rapid and point blank shot or a power attacking half-orc barb with a masterwork great axe and just slowly advance.
If you rp a little up to the place where combat takes place if the arena is outside you could easily set up an ambush. If you put points into disguise and are of the same race as the mercenaries you could fool the others into thinking that you aren't there (or they could waste time looking for you target by target).
So...
Elven Druid
Str 10
Dex 12 (14)
Con 10 (8)
Int 10
Wis 12
Cha 12
This would give you 9-21 hitpoints, +4 to hit with a bow (elven weapon), +4 on a disguise check (3 for cross class 1 for Cha), ability to cast 2nd level spells and a companion (probably wolf still).
If you could get 5 elven archers (2HD +1 base attack +2 dex AC 14 [10 + leather +2 dex]) (these are just random numbers that sound decent to me) at 300gp each (again, not sure of actual figures) you could have them all spread out so it would take a move to get from one to another and they wouldn't be close enough to get hit by the same spell.
That would give 6+ attacks per round and add multiple targets.
If that's not the case then either go with the same druid with rapid and point blank shot or a power attacking half-orc barb with a masterwork great axe and just slowly advance.