Red's Addonpack is a palladium addon that adds many items/blocks, structures and, powers.

Powers that the addon has:
Iron-man,
Black Panther,
Doctor Strange,
Mr Freeze,
The Human Torch,
Falcon,
The Thing,
Invisible Woman,
The Hulk,
Cyborg,
Speedster,
Ant-man,
Vision,
The Force,
The Infinity Stones,
Etc

Stuff that can hold the Infinity Stones:
Cosmi-rod,
Vision's Head,
Loki's Secpter,
Iron-man's Suit,
Eye of Agamotto

How to put a Infinity Stone into something:
Put the Infinity Stone in your offhand and the thing you are trying to put it into in your mainhand. You should see a button, press it to put it in the thing you were trying to put the Infinity Stone into. But to put the Infinity Stones in the Infinity Gauntlet, open your skill tree with the Infinity Gauntlet in your off hand or main hand. You should see buttons to add the stones to the gauntlet.

FAQ:

Q: I die if I'm too small or too big which breaks other addons like Gravestone: Herotime. Is there a way to fix that?
A: Yes, use the /redgamerule DoSizeCrushing disable command in 3.1.0 or above of my addon. This also turns off the Quantum Realm btw.

Q: How do I remove my power?
A: Use the Power Remover item and if that does not work then use the /superpower remove command.

Q: Will you make a fabric version?
A: I want to, but my addon uses Iron's spells, which is forge only, and so I would have to remake the spells, which most are easy to remake. Still, it would take a while, and it's not my main priority.

Videos: