Unless I missed something, they forgot Flonne/Prinny double, which is sad, because it's quite funny. They dance together... and it summons a meteor XD

Also, Overlord Prier technically has another attack, but it's only available to the enemy one. Your team Prier can't learn it.

I still say that Culotte/Homard's double attack is the funniest one, though Laharl/Flonne is <3 Haha.

Oh and the song that plays when Overlord Prier's double expo starts is the new final battle theme /random info.