cheap cowardly tactic for winning on impossible (mage)

[Gatts]

sounds pretty clever - and I can imagine that it could be combined with clone / phoenix / daemon gate spells (let the summons be hit to get more rage)

[Writhan]

Doesn't this take a looooooong time per battle?

[milo]

You still cast offensive spells you just include them while dragons are invisible. Concentration ability stops granting mana after a time so this is the best way to safely regen mana. It can be tedious but in many fights on impossible you are ridiculously outnumbered. You also don't lose troops unless you screw up. I have not tried magic spring on summoned creatures I think they would die too quickly for it to be efficient.