author i have a suggestion rather than making mc too op why not have him summon a living armor and no i don't mean a armor with sentience but a armor than moves on it's own but is empty in the inside so mc can just stay inside and have the armor as his bodyguard which would move on it's own or a golem with a proper place inside for mc to sit inside kinda like a mecha but the golem moves on it''s own i think they are good options for summons that would make it so that mc won't be a glass cannon while still being a summoner
