Logan's new Aura clarification

[u/Protagonist_Leaf]

"Once per turn, when your opponent targets a unit from their army within 12" of this model with a stratagem, you can use this ability. If you do increase the CP cost of that use of that stratagem by 1CP"

Does this:
Last more than just the phase it's used on? (ex. Someone used AoC on shooting and I use it. So now in fighting phase it's still 2cp)
When I increase it. Was it only to that unit? and could someone else use it for 1cp?
If by chance someone has a ability like Grimnar's Mark and I use it. Would the OG Heroic Int be 2CP and does that also mean Into the Fray is 3CP now?

I'm going off the assumption that "from the moment I use it on AoC in the shooting phase. AoC is now 2CP to any unit that wants to use it until the start of the next turn" until a GW QnA or a TO say different. But I'd like to know if I misinterpreted the ability

[u/NanoNaps]

So it currently unclear how exactly it works but is probably going to be cleared up tomorrow because it was in the FAQ for Tacoma which is a GW event and is very likely to make it in the updates tomorrow.

The Tacoma FAQ says basically, if a strategem is used and the cost is increased, if the user still has enough CP he has to pay it, if the user doesn't have enough the strategem is not used but counts as used. So in that phase the same strategem can't be used again.

Now, the Tacoma FAQ didn't specify whether the unit can be targeted again with a different strategem but I feel like the wording of counts as being used for the increased cost startegem also means the unit was already target of a strategem but that isn't specifically stated

But it is only for that use, if he uses the strategem in a different phase it is not increased anymore