YAGURA DIFFICULT:
Its fairly easy...
just use this line up...
Sasuke, Midnight Blade,X
X,X,X
Kabuto, Kimimaro,X
Skills: 2-3-1-1-2
Summon: Serpent/White Snake

Round 1 Wave 1: Use kabuto (he will be the target for immobile), Your main should initiate a combo on 1st attack, otherwise, restart
Round 2 Wave 2: Use main mystery on full life enemy, then you can Auto

Wave 2, Use main mystery on Breeze dancer and if she alive by next round, focus on her 1st, then you can auto.

Wave 3, Use main mystery on Mei Terumi, next round Kimimaro Mystery on Mei again if she is alive, if not go for Chojuro... you can auto after this

Wave 4, Use main mystery on yugito, you can do the rest.. Have fun, its easy for Lightning mains!