Please post your roster, but usually the best way is to use some turn meter manipulation at the start to never let the opposing clones take a turn. 

A combinatioon of nukers, TM control and buffers.

I did Fae 80 with Arbiter, Royal guard in second position, Ninja, Astralon, Allure.

Manual everything is the key too have all skills up when facing her. Arbiter tm booosts, Ninja freezes everyone then everyone uses aoe. enemy team dead, Royal guard gets stolen and dealt with then Allure keeps tm sufficiently under control.