[Ivramire]

Mages and archers are almost completely different in BK.

Mages are the top-played class in the game, with the ability to stun with lightning and a 2-second cd on Magic Burst. They get Inferno(lvl67?) before Frost Nova which comes much later than in Fiesta.

Archers are a much more feasible class in BK than in Fiesta. I managed to get one to lvl15. and still haven't got any DoT abilitys. I believe the first comes at lvl35. Archers attack much faster:-0.9 secs with a bow. and their lvl15 ability traps the enemy so that they cannot move or attack. DEX in BK is actually a usable stat with full DEX builds (from Loveless' guide) being able to evade high mobs half the time.

Clerics are also different with a useful ability that lowers mob defense, stunning and a bleed debuff.

Fighters seem to be pretty much the same with the notable difference that their lvl2.Snearing ability(it's not a kick in BK, more like a head-butt) comes later than in Fiesta making it a little more difficult to hold aggro.

What's also interesting is that every class can buff the party.Archers can increase the party's accuracy and crit rate, Fighters the attack, Mages the SP and Clerics get a early weak endure which is a HP buff only.(I believe they still have the resist and protect buff)

*BK has more skills and the levels at which you get them may be different than in Fiesta