yeah this game has a problem of not giving indicators for some stuff. If it wasn't for me reading the patch notes, I would have never realized now I have to summon Sol in order to do the Faction Dregan missions and unlock the shit i need to train the Dregan characters
Leif/Shade - Link and Dark Link (Legend of Zelda)
Soren - Sora (Kingdom Hearts)
Askr - Emil (Tales of Symphonia 2)
Zel- Alm (Fire Emblem)
Sol - Pit (Kid Icarus)
Heiden - Euden (Dragalia Lost)
Ayers - Elsword (Elsword)