Eder had summoned a variety of undead, including Flaming Zombies, Poisonous Ghouls, Skeleton Warriors/Mages, Dullahans, and Death Knights. 

The Poisonous Ghouls rushed in with their sharp purple nails, the Skeleton Warriors dragged their rusty swords across the floor, and the Skeleton Mages' eye sockets blazed with deep blue fire. 

The Dullahans, whose severed heads hung from their sides, and the Death Knights, who'd returned to life after hearing their master's call, rode on skeleton horses. 

"Attack!" Eder pointed his skull staff at Galmoss. 

Kuaah! Rattle, clatter, rattle!

The undead cried out and/or their bones rattled as they charged at the Roaming Galmoss. 

"Hoo, hoo." 

Eder looked exhausted. It was only natural. After all, he'd summoned an army of 200 undead all at once! In order to maintain his hold over them, he needed absolute concentration and a huge amount of MP.

'Can we really hold out for a minute?' 

The undead he'd summoned were between level 200 and 300. The Death Knights were the highest level, but he'd summoned very few of them.

On the other hand, Galmoss was level 400. Moreover, it was a boss monster that possessed power that exceeded its level! 

Even if he were to summon...