He is good if you build a team around him. A guy already got him with 210 seals, check youtube. If you go for him you def will have omoi and samui too to build with him. if you get them here is a good lineup:

Samui | Lighting Main | Ay

X X X

Omoi Xclones Xclones

Summon: Monkey King

Talents: 23432

10 Combos, lots of control, tankiness, shields, alot of chakra recovery, buffs, clones. This team works best if you have high ini and power though.