3D would probably be 3-3 History, and 4D would be...1-3 legend? However, not a lot of farm stages for boxes, nowadays it's either boss-box farming, key farming, or genocides. Anyways correct me if I'm wrong, or if there are any other better spots out there.
Deity, 70 + 77 Dainn, Inactive
BattleGod, 68 + 82 + 74 Sieg, Casual PvPer