So fun fact about this spell. It's not going to fade, which I did describe in my post. This spell was not directed at one person. Its effects are going to last several minutes, which is why I'on felt the mana go out of him like that. So while his instincts could snap him out of the relaxed state, he will return to it unless he constantly pulls himself out of it and that's just part of the effect.

The rest of the effect makes anyone within the Area of the spell (which is within the building and slightly surrounding it) try to avoid aggression or violence. Also, the effect doesn't just cause relaxation (related to the word "calm," in the spell), but also reduces stress levels. I also specified that this spell is effective enough that it has caused things fighting I'on in the past, to become totally passive and stop attacking altogether (and continue to be passive while he killed them. Though for a short period of time).

This isn't something like his spell back at the gate that he tried to use to calm the situation (where he literally just said "calm,") where you can easily brush it off. This is a powerful, quite effective spell, that is effective even in a combat situation of high stress. While the initial calming/stress relieving effect is stronger than the sustained effect, the overall effect is still strong enough that it should stop Morgan from just throwing Ixion off of him so roughly.

Like...he'd feel immensely uncomfortable the moment he tried to throw him. He'd feel fine when he grabbed and stopped Ixion's arm from moving the blade to his neck.

I...actually should've addressed this earlier when Ixion approached Morgan and very aggressively pressed a weapon to his neck. He's free to do these things, but it's going to make him feel more uncomfortable than Morgan would feel with a blade against his throat.

Edit: Shien, Jack, tell me if this is going overboard at all or exceeds what I already described in my post in regards to the spell's strength and effects. Though I am almost certain that it is this effective.

Edit p2: I do say that I am quite happy for I'on that his spell, nonetheless, managed to help keep Morgan at a manageably sane level xD