My submission will be Summon Materia from Final Fantasy 7
The item is sort of like the pokéball of our universe in that in summons only characters from one series, but this item instead is for the summons from Final Fantasy 7. There are six random possible summons:
1. Ifrit
He flies upwards in the air then charges forward and towards the ground covered in flames. There’s a giant fiery explosion when he hits the ground.
2. Shiva
She flies into the air then throws a gigantic ball of ice towards the ground. The ball of ice freezes any opponents it hits.
3. Bahamut ZERO
Bahamut flies way up in the air and goes to the center of the stage. Then they shoot a blast of energy near the center which causes a huge explosion, damaging anyone who was close enough.
4. Choco and Mog
The chocobo runs across the screen a few times. If they hit someone, a big comical looking explosion appears, damaging the opponent.
5. Knights of the Round
The knight in the center of this image will slash his sword forward. If it hits anyone, about four or five other knights will appear and individually start slashing at the opponent, dealing massive damage
6. Meteor
Pretty much just the moon assist trophy only with the meteor from FF7. I know this doesn’t technically come from a summon materia in FF7 but I wanted to include it anyway.