User blog comment:IamJakuhoRaikoben/Chapter 440: God Serena, Review./@comment-26389992-20150615123219/@comment-1153699-20150621124439

@Sane -> 1) Everything Juvia took doesn't compare to Laxus clearing an area filled with MBP/contaminated Ethernano by taking all of it into his lungs. I'm not saying Juvia isn't durable, but saying she took anywhere near as much poison as Laxus took is ridiculous.

2) Tempesta's MBP multiplied (at least it looks like it did), Keith's MBP didn't. Tempesta's MBP covered an entire town, Keith's MBP didn't. I've given you scans that show Keith's MBP vanishes shortly after it leaves his body. Tempesta's MBP and Keith's MBP may be equally lethal by themselves, but they don't work the same way.

3) He couldn't eject her because she was inside him in her liquid form (or whatever that was..), not because she was infected by his MBP.

It was stated Juvia was infected by Keith's MBP (obviously), but it wasn't stated she absorbed all of his MBP and that's how she won. Here -> http://img4.mangasee.co/series/FairyTail/0394-015.png you can clearly see much of Keith's MBP bursting out after Juvia materialized inside him. From that scan alone you can see she didn't absorb everything.

4) Keith's MBP still wasn't shown to act anything like Tempesta's MBP after the latter released it. Like you said, Tempesta's MBP fed on Ethernano in the atmosphere and contaminated it. If Keith's MBP acted anything like Tempesta's, then just him morphing around would have slowly contaminated the area around Juvia and the others. But we've seen that even after Keith attacked Juvia multiple times, the area still wasn't contaminated in the slightest. Laxus's feat of clearing an area filled with Tempesta's MBP/contaminated Ethernano > Juvia's feat of taking in some of Keith's Body.

5) He didn't retract them here -> http://img4.mangasee.co/series/FairyTail/0394-006.png Or here -> http://img4.mangasee.co/series/FairyTail/0394-005.png Or here -> http://img4.mangasee.co/series/FairyTail/0390-013.png

The way I see it, they do disappear. And again, Torafusa said she was infected by Keith's MBP, but he didn't say she was infected by all of it or that she absorbed everything. And I've shown you a scan of Juvia after she materialized with the MBP bursting out of Keith's body.

6) Tempesta's MBP didn't multiply but it contaminated the Ethernano in the air (which Keith's MBP wasn't shown to do) and Keith's MBP does vanish (imo at least..).

7) Juvia, Lucy and Natsu were all unconscious and poisoned (Tenchi Kaimei and Keith's MBP). Levy was there and so was Tempesta's body. It's not impossible to think Levy treated them given Levy is easily one of smartest (if not the smartest) and most knowledgeable people in FT. I heavily doubt that after being inside Tenchi Kaimei for a few good minutes, Natsu just got up and continued to fight Mard Geer.. :P

8) I already know Natsu and Lucy didn't take in MBP.

Juvia didn't take in all of Keith's MBP and his MBP didn't feed on the Ethernano and contaminated it like Tempesta's MBP did.

9) "Nowhere near" is a bit much... I know Kyouka is stronger than Sayla (overall), that much is clear. But in terms of offense, I think Sayla is stronger. Kyouka isn't vastly superior to Sayla though...

Sayla has a spell that is 4,000 -> http://i.imgur.com/AbwksLn.png and Kyouka has a spell that is 2,500 -> http://i.imgur.com/Lv022kz.png