Treat Them As If They Were Humans

BOOM!

Rex's body exploded with lightning and spirit energy right after he summoned Devo out, the sheer force of the energy cracked the ground surrounding Rex and also destroys the fences that surround the arena.

"Woah!!", both Evelyn and Dray exclaimed as they got pushed by the energy.

They need to activate their elemental aura just to stands in the presence of the massive energy coming from Rex, they can even feel their spirit is unwilling to be used.

As if their spirits are afraid of the energy coming from Rex,

Evelyn looks in Rex's direction with a frown while resisting the massive energy before her eyes widen in absolute shock, she can't hide her surprised expression at all.

Just behind Rex who is standing fiercely in the middle of the arena,

She saw a grey cloudy figure that is the source of the unbelievable spirit energy that she's feeling right now, it was huge and the spirit's presence pressurize other spirits around it.