Iskandar’s Noble Phantasm creates a Reality Marble (basically a pocket dimension) and calls his army. The dimension is a vast desert plain. His army consists of tens of thousands of Heroic Spirits. Once invoked all his allies and enemies are transported inside.
While in the Reality Marble Iskandar is on his own terrain, with all the advantages. His Charisma is boosted.
RM & army can hold for significant amount of time (I usually give it 20 minutes to half an hour but that’s my non-canon estimate)
Army cannot leave the RM but Iskandar can send a single messenger outside. He can release allies and enemies wherever he chooses when RM is dissolving. That has potential of taking all of them out of the collapsing building. Also potential for totally changing the battlefield. (or spoiling the fun for everybody) So I’m wondering about the consequences of its use.

Here go my questions:
1) Is it possible to drag Old Woman and Teen inside the RM?
2) if 1 is possible would that mean the crystal is going with them?
3) would ayakashi go with them?
4) would they be protected by the field?
5) Iskandar soldiers are Heroic Spirits like him (some can be even physically stronger) would they be able to harm Old Woman & Teen? How about ayakashi if any of those gets dragged inside ? (they won’t be able to rend obviously but there’s enough of gods there to do this)
6) Would there be any negative consequences for Waver ? He saw Ionioi Hetairoi when he was alive while being Iskandar’s Master in the Fourth Grail War. He doesn’t remember now but it was important memory while he still had it. Would Iskandar be even able to think of using it in front of Waver without triggering the no-no-no serious objections connected to Gods Greatest Secret?

More detailed description of Iskandar’s Noble Phantasm here

It is very OP (one of the strongest Noble Phantasms with the highest rank) and I’m totally willing to nerf it down as needed.