Source: 聴牌！！ (@tenpai_miko) on Twitter.
if you don't know what assists to pick in MAAB:
- pick Balin
- pick an assist to extend combos, usually one that will trigger a counterhit after your D normals (if you're a wind character, pick a fire assist, etc.)
- a level 3 assist of your element to end Enchant Boost combos