4Game

My guess is:

NG:
Enslave 6 – 11 provinsions ( better version of vigos muzzle, therfore 12 instead of 10)

Imprisionment – 8 provinsions (lock + 3 dmg special is 5 prov and no one plays that, so maybe for 8 it could be played)

Tactical decision: 9 provinsions (7 body + draws, so 9 is fair i guess?)

Imperial formation – 10 provinsions (nothing to compare, so I guess value + engines protection is worth 10 prov)

Impostrer: 10 provinsions (lock + value of usually 7-8 points body should be worth that much)

SC:

Invigorate – 14 provinsions (12 value in itself and boosting units in hand is ultra powerful tool)

Guerilla tactics – 10 provinsions( 9 value and protecting engines is strong enough in itself for that price)

Mahakam forge – 6 provinsions tops i guess?

Deadeye ambush – 13 provinsions (value + elves synergies)

Skellige:

Patriadical fury: 12 provinsions (body + bloodthirst synergies)

Reckless fury: 10 provinsions (very powerfull control tool)

Blaze of glory – 9 provinsions (usually hard to find good target to remove with juttato get full value)

Ursine ritual – i have no idea, maybe 6 provinsions, with no use in any other deck outside sigvald build

NR:

Royal inspiration: 10 provinsions (a lot of value with grace cards , but bo real use outside grace units)

Piencer Manouver: 8 provinsions tops for me (something like kind of version of triss butterflies)

Inspirational zeal: if restricted only to NR faction no more than 8 provinsions

Shieldwall: 9 provinsions (engine protection and roegener synergy)

I am very poor Monster and SY player so I will restrain myself of guessing , becsuse I dont know that factions so well.

But I am curious: what are Your guess?