favourite magic/summon spell (from any)

[yuna]

i quite liked final fantasy's vi pearl and the esper palidor because it was fun to jump, of course crusader was a very good esper. Also final fantasy iv's bahamut because it looked really cool! But my favourite has to be quick from vi because you could attack twice and if you had atma weapon and illumia you had potential to do 20,000 (well 18,000 but close enough) damage!

what about you guys?

[Tiri]

Counting the Chocobo's mysterious dungeon series, my favorite was probably the final character's ability in the second game to transform into enemies. As for the primary series, I'm going to say Little Meteo from FFIV. It took a bit more effort than the usual spell, but the results were well worth it. I'm also going to agree about Bahamut, FFIV still probably has my favorite version of him; though Bahamut Zero was pretty neat.