The Lazarus Project
"Aqua. My demon beast!"
Eren nodded in agreement with Rodrick's realization before continuing forward.
"That's right. Summoners are glass cannons. But demon beast owners would find it convenient to have such a class. They would always have their beasts to count on, no matter if they are battling solo or in a team. Their companion can support them until they get high enough in their class."
Eren said and remembered the animated spell Rodrick had executed in his battle against Altashhia. He started pacing in the room with his snakes in tow before speaking further.
"What's more? Rodrick's demon beast can take flight. That means he'd always have an option to retreat.
With the Summoner class, he can just keep a safe distance from his enemies and overwhelm them using his summons without facing any consequences. His demon beast also has a few long-range attacks.
The wyvern basically nullifies all the drawbacks of being a summoner. It'd be a shame not to take advantage of it.