The break down here is really simple.
Most of that team do little damage with their basic, blue, green and orange skills (where applicable), so with Cyclops and medusa, the team would have been fully charged up, 2 times over, during the Minions phase.
Elf orange skill would have removed all shields instantly, from there medusa with expertise can stone all or most of your team from the first shot, definitely all from the second. Wee witch would have one shotted archer moon and wolf, then she would be charged for another two shots which should have taken care of everything else. In the meantime, Cyclops white would deal with any risk or dodges that may have happened.
The horse Shields on the attacking team mean nothing your team would have done in those first few seconds would have had any impact.