Why Aren't Thunder Spells Actually Called Lightning in the Game?

[Clavaat]

Personally, I hope they remove the I, II, and III BS and actually start naming them properly. Thunder, Thundara, Thundaga, and so on and so forth.

Depends on the FF game you're playing. The rest is true, but this part is different from game to game. Amon in ST actually casts Thundaga and Blizzaga. In FFXI, the -ara -aga conventions only applied to AoE abilities. The rest were numbered. I want to say...FF4 followed the same convention. I know there's another one or two that do that.