It's pretty fast itself - but at least not as fast as Eliese - though the beam of green light that launches from its mouth doesn't look like something Eliese will want to get hit by. 

It usually is good practice to dodge magical attacks, yes.

Her strategy here is more or less attempting to outspeed the thing, using her incredible strength and durability to target whatever weakpoints it may have with close combat. Eyes, exposed mouthparts if she stays quick enough, any gaps in its hide, glowing highlighted target circles, and so forth.

Seems to be literally just the inside of its mouth while it is actively breathing magical fire, at a angle where it's really difficult to not get hit! She doesn't even do chip damage to the rest; it's just flat out immune to attacks. 

- Except for when a glowy Zero and Daniella slam into it. That, it feels, though it still takes only chip damage. 

Unfortunately, glowy mode doesn't last long. 

Enough for Eliese to wager a small bit of her reserve on a magical attack, to see if that also has an effect. A stuttering barrage of lasers, emitted from her chest.

Only the ones that clip its open mouth have an effect, though those do a lot more damage than she'd been managing earlier.

"Can you attack it from inside itself or something?" Zero calls over.

..She'll hitch a ride with the dragon on their side if she winds up needing to at the end.

How does Zophiel feel about a "Conflagrating Stellar Bomb" shoved down its gullet?

- It really doesn't like that!!! It's exceptionally difficult for Eliese to actually land that shot without getting hit - but once her own hit is in, the dragon roars in pain and begins to tumble from the sky, continuously breathing fire.

That seems to be taken care of, then.

"Zero..." Four's voice echoes around them. "I've realized something, Zero."

"This world... There's no point to it. It's meaningless."

"Don't you think it should stop existing?"

"That's not like you, Four."

"I hadn't realized, then, how utterly meaningless it all is. Without that... This world should be destroyed. And I'm the only one who can."

"...The Flower's gotten you."

"Join me, Zero. Or die with everyone else."

The music starts growing louder.

"We have to find her."

"Daniella - "

She's on the job! Big sniff energy right here.

She can pinpoint Four's location admidst the fog - she's exposed, at least, the demon no longer wrapped around her.

"Over there!" she calls to Eliese, and dives in. Daniella doesn't want the world to end, she just got here and she likes it. Zero lives in the world, after all.

Zero starts to sing as well, and her music doesn't clash with Four's - unlike the glowy mode - but instead complements it well. (Her voice is high, melodic, a smooth and strange contrast to how she normally speaks.)

It's difficult to tell exactly what she's doing, but the buildup of pressure in the air is slowing down. 

"Drop me in sword-reach of her," Daniella hears Zero say, even though Zero's also singing at the same time. 

She can do that for sure. Her accuracy is pin-point.

Four's Disciple steps up to the fight -

But Zero can keep them both at least busy - especially if Daniella helps.

Yes, she is the best at helping!