kasathan monk the multi weapon fighting feats, unless your dm allows flurry of blows to grant 3 off hand attacks with 4 armed characters, with a bab of +16 you have 4 primary attacks with 12 offhand attacks, adding mythic the 3rd tier mythic ability precision reduces the penalty for second, third and fourth attacks, taking it 3 times (mythic rank 5 minimum) allows all attacks to be made at the first attacks bonus, on top of that stone fist gloves, and titan strike makes each unarmed attack deal 6d8 damage,
Also using unchained rules at 14th level he can take blood crow strike to deal a full attack as a ranged attack