I've been waiting for this forum to update and only now have I realised it went onto another page (I should put this one on follow).
Anyway I'm not too sure what you two people are but you said cast Odin and Cyclops so I assume you are two summoners of Final Fantasy. I never knew there was a summon called Cyclops?
I believe both summons lack distant attacks so she will just keep her distance, cast Thundarga on Odin and as for Cyclops (checking the wiki) oh he does have a distance attack. Slight change of tactics for my avatar, have her cast Blind (I don't believe there is a Blindarga) on Cyclops and lure him to shoot at the summoners, while casting Thundarga on Odin. While he's blind it would also be easier to have my witch just kill the summoners, cancelling out both summons. Why didn't I have her do that in the first place?