Cosmic Magus

The strongest wizard of the cosmos has been cast into the unknown by a mythical power. Traveling amongst the stars seeking knowledge- specifically new spells to master- he came across a time loop in the middle of the universe and now is stuck, in an endless loop. His enemies found a way into this loop and now he must protect himself. Unfortunately for him, this loop has caused his memories of all the spells he has learned to diminish, forced to wait and see what his enemies use against him and copy those spells to use to defend himself. You are tasked with defeating endless waves of enemy warlocks that want to kill you; wait for them to use a spell and then steal it and use it on them.