No idea if there is such a thing in DnD 5e but I suspect not? To me, frankly speaking, this concept feels out of place in BG. Besides, spellcasting classes can already imbue companions with beneficial spells.
In pathfinder they have teamwork feats and that was close enough to dnd for me. Why have a team if they don't really work together to full potential?
@grysqrl See thats the problem. Spells. Casters have progression. Melee are very lackluster. Effective, yes. Just boring for a video game. In pnp you have friends, DM, explanations, free rein on descriptions, etc. As a video game its boring. Larian actually already admitted this early on and tried adding abilites to weapons. They mentioned brainstorming and this is the suggestion section.
