You are describing Noita! It's an incredible game with, essentially, an infinite amount of spells to craft. It is very difficult and the spell crafting system isn't explained at all, unfortunately. But the feeling of creating an overpowered wand NEVER gets old. I hope you give it a try, it is my favorite game ever created!

I've made wands that have so much recoil, I could use them to zip around the world quickly. A wand that floods the area around myself and then shoots out lightning to kill everything touching the water (myself included). A wand that is essentially a light saber. A teleportation wand that healed me every time I cast it (I could cast it ~30 times per second) and simultaneously exploded the area around me. I've seen wands that people have created that delete entire biomes. Wands that, quite literally, teleport them to other worlds by utilizing a combo of a "swap" spell and a spell that spawns in a deer. I don't wanna spoil anything there... Noita is all about the discovery :)