Most of Elden Ring can be beaten with 5 spells:
Blue laser
Fast blue laser
Big blue hammer made of lasers
Long range arrow (that is a blue laser)
The only non-laser spell you need is Throwing Rocks At Your Enemy’s Face. The rocks are purple, not blue, but I’m giving it honorary blue laser status
and the bonus of throwing rocks at your enemy's face is sometimes you hit them in the temple so hard they fall down and the person whose glory you're trying not to steal in co op can crit