Idea for a twist in my hack

well as some of u may be aware my over-all hack of FF6 is basically an over-all improvement of the game as well as a hard-type hack

apart from all characters looking slightly different or w/e there are many changes such as only 4 chars can use magic (Terra, Celes, Strago & Relm), twists with weapons, like all claws function as genji gloves (one claw in 1 hand), all spears enhance jump, axes & clubs (which there will be much more of in the game) do extra damge to humans etc.

basically I had an idea that certain weapons can randomly summon certain espers, seeing as how it will be limited 2 just 4 people, we cant rely on setzer's slot command landing on bar or using a magicite item

so I was thinking of having certain bosses can drop special weapons (of course it is rare 2 get)

an example is Inferno Axe, I suppose I might have 2 change the name idk if thats too many letters lol, and it would have a 25% chance of summoning Ifrit

another is the the Lightning Staff (again the name might be changed) and it can summon Ramuh

I was also thinking of a spear to summon Bismark or maybe even Shiva

also perhaps a claw/knuckle that can summon Alexander u kno

give me some ideas here guys :p