I thought you meant that it was wasted on Araches/L33tz4n because they died from not defending them.
Well, can't go back now.

What about:

Conquista: Hfishy Ice Hydra with one more HP then the rest
Sam: Seppuku on the Ice Hydra with one more HP then the rest, then Animate dead on the one that just died

Shuri: SE, Attack Ice Hydra
Araches/L33tz4n:E, Attack Ice Hydra
Furious: Attack Ice Hydra
Animated Ice Hydra with more HP than the rest: Attack Ice Hydra

That would take care of two of the Ice Hydras in one turn, with minimal loss on our side.