Currently there is an in-game promotion for the upcoming Epic Wars. Make your own 3-pack for 299 gems, which is a great deal. But what is the best combo for you?
Ophiuchus/Kaori/Postiguraf
Nautilus/Inkatius/Teashire
Mothman/Salamander/Growler
I really need to start ranking Kaori, she is stuck at 90. Nautilus and Mothman ditto. It is tempting to try and summon some gems.