In someone's dimension, looks like. They are dead or disabled and the dimension is full of...bubbling something. Might be lava.

Does the lava react if they retrieve the dreamshard through force-field bubble?

It seems to be magic-melting lava or something. Not friendly to forcefields.

Some more monsters get loose through a different dimension. 

Well, the extra monsters can die.

They can shape some vines, turn them into heat-resistant metal and use it a as pincer to grab the dreamshard.

Once the metal is sufficiently heat-resistant this works.

The dreamshard's opinions on this could be vaguely described "better than being in lava" and "they've ruined all my fun."

It also grew considerably in size.

Regardless, they ward it against touch, put tracking spells, anti-sleeping spells, paralyzing traps and encase it in a powerful force-field bubble.

And they take it to Trevor's dimension.

Trevor expands his dimension down, down, down. The environment isn't a planet. There is just more air and floating islands where "underground" is supposed to be. You can't open portals to and from solid matter. This should hinder a considerable amount of living dreamshapers.

The living dreamshapers seem to have turned those of their energies which could be said to be strategic at all towards the war effort rather than the crystal.

Good. Trevor lost his pocket everything at some point. So instead he reappears back home and gets a new one.

Dreamshard is in our possession. Going to have some witches escort it back to Anitam.

I will notify people.

Cool. I will help with the war effort. But I don't want to produce more stormguards if I can avoid it.

He also notifies Felix, Dana and Aden.

Anitam fires missiles. Calado spits unpredictable magic disasters which rampage all over the place.

Whoever is aiming the missiles can have likely dreamshaper locations.

Not to mention help from people that can counter magical disasters with even greater magical disasters.

You do that much damage Calado'll assume we're not planning to leave survivors.

I'll tell them to calm down. But the things they're doing to counter the disasters are generally better than leaving the disaster be. They just have to trade-off between scale and precision. My storm already diminished considerably.

Shortly a second message.

We could start taking survivors and leaving them inside my or sufficiently inactive dimensions?

That doesn't help reassure them any, they can't verify it. Go ahead if it's safer, but doesn't solve this problem.

Figures. But I doubt that actually leaving people to die in the middle of a magical battle field is going to help them being reassured either.

The witches start using more precise sorts of magic. They kill magical creatures, but generally leave soldiers merely incapacitated. Sometimes they heal civilians.

Their magic is still quite large scale and impressive. Now that Aitim knows the trick, he can tell that they're still playing up the 'high expectation' angle.

Anitam is livestreaming the magic battle to the somewhat tasteless excitement of their citizenry. Calado is firing back at them.

Firing what? Missiles? Those can just get halted in the air.

Then they get dismantled.

Or used as improvised weapons against monsters.