[X] Conjure a flock of wire-birds. Maybe also make a tiger if we don't want to use our own mount as a distraction. Use birds and tigers together to fool him! We distract with the birds, but not enough to threaten him; we make it look like we're setting up for an attack with a tiger; then we feint an attack with a tiger; and then bam! We have the flock of birds dogpile him and use wire to wrap him up like a Christmas present.
If we don't see an opening, then we
make one!
So, having thought about our puppets and our wires... If I remember the Kotomine fight correctly, Iri did more or less this -- used her eagle to bind Kirei's arms to a tree when he wasn't expecting it.
So, clearly, this means that wire-constructs are more dangerous/useful than just straightforwardly attacking somebody...
Can we just make a flock of birds (and maybe a tiger?) and then have the speedy and agile flock fly to the Baron and then simply TIE HIM UP in wires? Just close in with him, tackle him and wrap him up.
Then we can knock out or disable at our leisure.
We could distract him with birds, then have a tiger (our own tiger mount maybe?) use the attempted distraction to feint a lunge for him, as if we were planning to use the birds as cover for a serious attack with a tiger; Baron goes after the big obvious threat, and then the birds just pile on him and wrap him right up.
You don't have Mystic Eyes of any sort. Iri never had them as far as I can recall. As for hypnotism, there's a chance of you getting it to work, but as you've never done it before, your odds of success are not very high. It's something that can be improved later.
Well, something to work on later.
Another idea that came to me -- can we use our Ethereal wire(s) to touch targets to transmit our spells (such as Healing or Decay, but also maybe something like Reinforcement) to them? I *think* its not something Charlotte had tried before, buuuut it makes sense for such a thing to be possible... After all, the wires are basically your prana, or a bit of magecraft in action if formed into a construct... I figure this is a trick that would be possible to pull off, its just not something Irisviel nor Charlotte had ever had occasion to try before. (Its not like Irisviel was exactly a veteran combatant or anything... Frankly she did quite well for what she had.)
... Wait, but during the first battle in Fate/Zero, between Saber and Lancer... When Lancer first wounds Saber, Irisviel is able to heal Saber -- without coming up to her or touching her. She heals her at range. How the heck did she do that. Argh. Odd. How do you heal at range? Is it because of some Familiar-esque link? Meh, oh well.
You can last ten to twenty minutes, you estimate, before you'd be panting on the ground and struggling to move faster than a walk.
Well...
I imagine our tiger is faster and more maneuverable than us. Are we good enough to be able to ride it as it jumps around and attacks in battle?