I just cycle through spells, aiming each one at the enemy I want to hit, and pick the one most likely to land.
Yes it’s a huge simplification of everything. You don’t have to think about what kind of creature you are dealing with when digits can tell you everything. Does it have a magical weapon, what is its nature, does it have night vision, what weaknesses could it possibly posses? It’s not a convenience at all. Not to say it’s immersion breaking.
