Talk:Crescendo Megurine Luka/@comment-206.176.97.195-20150303151603/@comment-25179062-20150303172442

My observations from experience: To have a chance to raise BB level of a unit with a multi-category BB, you must fuse a unit with the same dominant BB type. Offense is always considered dominant, Healing is second, and Support is last. Thus I expect you would need to fuse units with offensive BB to Luka.

Keep in mind that the type of fodder required may change when a unit acquires SBB. For example, increasing Exvehl's BB (support) requires support type fodder, but increasing his SBB (offense, support) requires offensive type fodder.