Ruin Explorer
Legend
Because it lets you do things you couldn't otherwise do, duh. That's how magic works in tons and tons of fantasy settings. Being able to say, turn into a sparrow is an incredible trick that can get you crazy places or out of bad situations, but does it make you "more powerful" in some general sense? No. It's situational. Magic quickly just becomes a lame superpower when it's simply a better replacement for normal stuff.Why have magic if it doesn’t make you more powerful?
Realistically?
Early D&D chose to make magic powerful and but tried to make it peculiar and specific. Unfortunately people kept adding and adding and adding to try and make magic do everything, because early gamers weren't good designers, and weren't thinking about design in most cases. 2E made magic even better, and then 3E made it insanely better by removing like 90% of the things that made being a caster not great. PF1E said that it fixed that but made it much, much worse (just making a few individual spells less powerful). The power level was always entirely arbitrary.