Greg responds...

Etacol retnecipe fo yrecros! = Locate epicenter of sorcery!

Erif, kees tuo siht larutannu erutaerc! = Fire, seek out this unnatural creature!

Niatnoc eht erutaerc! = Contain the creature!

Solvo quod reverto! = [Sorry, I just can't remember what this one means. But it's Latin, if that helps. Google Translate says it means "Free return that!" But that can't be exactly what we had in mind.]

Fulmina venite! = "Summon the lightning!" or "Lightning come!"

Ekirts Natow nwod! = Strike Wotan down!