right so lets talk about those last 2 points that you made but I'll start of with this:
@CloverDragon03 mentioned mimosa not talking about an increase in magic but an increase in speed and power thanks to Zora's trap spell but then goes on to mention that vanica is stated to get an increae in power linear to her each 1%. by that logic, shouldn't her percentages not count as a boost? they're stated to be, as well as zora stating to take power and double + reflect it therefore an increase. is there something I'm missing there?
Expanding on from the vanica fight, we literally do see boosts in power and speed. the start of the battle we see noelle tag vanica in base right before she accesses 50% and becomes relative to noelle's speed from 50-69% and notice how it says just her power has increased. but she can keep up with noelle now? so i'm going to stick with saying an increase in power will also increase youir speed too.
Oh and mind you that vanica's blood and curse magic is being weakened too so I would say that 50% of vanica is the low end of relativity before 69% being high end relativity for noelle.
70% vanica releases an aoe right after nero tags her, but wait - shouldn't nero be slower than noelle? she's narritevly not as strong and as quick as her higher forms. well, megicula half manifesting then goes on to blitz the team because they cant avoid the aoe. that sounds looks like an increase in speed to me. Need more evidence? well - chapter 254 page 16, noelle reacted to and skillfully dodged megicula's blood spears and we also know that in that very scene, undine chooses her as the next host. using spirits and being chosen increases MP. TLDR: Vanica gets speed boosts.
Lets move on to magna, what I dont like about the dante argument he brought up is that we not only see dante willingly tank slashes from jack, but amidst the smoke in the panel, the exclamation mark proves he knew an attack was coming from magna amidst all the smoke and dust that he shouldn't have been able to see through. still willingly tanked it anyway because of his superiority complex throughout that entire campaign. Dante literally says to magna to do his worst before he leaves. TLDR: There's no reason that Dante got tagged besides his superiority complex on top of him knowing that attack was coming thanks to what I can infer from the exclamation mark.
Again, if there's anything I'm missing or what Ive gotten wrong please tell me. thanks.
Oh and also, put me down as HEAVILY disagree
much appriciated