steeldragons
Steeliest of the dragons
AH! Dungeon Crawl Classics! How did I forget DCC?
That's not an answer...lol
Pathfinder (too easy, also debatable - not whether it's good, but if it's not actually Dungeons and Dragons)...Can you name a good fantasy TTRPG that's not D&D?
Ah. Well the answer to your question is yes.That's not an answer...lol

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.