I don't know... What's available in the summoning options? A Phoenix would be quickly defeated here. And it wouldn't do much damage anyway. If it even gets a chance to attack. Celestial Shield won't protect everyone. Unless you cast Phantom Form on all of them... But that spell needs to be learned first. I'm definitely going to level up Chains soon, but it's not very effective against Orcs. It all comes down to their Rage ability; the creatures themselves are mostly weak.