Flame Storm

[Redeyes]

I believe the Shimmering Field/Niefel Flames/Flame Storm spells would be competitive if they had lower path requirement; as is, at best you'll have one national commander capable of casting one of these spells and that's often with a considerable investment in gem boosters - the spells are entirely out of reach for other nations.

The path req for Shimmering Fields is particularly egregious, you pretty much have to play Caelum in order to use it.