Wouldn't it be too simple for the Energy Fields to both block passage retaining their tactical value, but also damage valid targets, releasing them early from Omen Gangs?
This way a Necro can still completely freeze a target and combo them with 100% success even without traditional pre-casting. Explo/Explo/Whatever; One free Explo damage in 1 on 1. That's mighty enough for a spell like Omen.
So Omen would not lose it's function in such a scenario, people won't get physically restrained(as physical as a game can be) and helpless in gangs and everyone's happy.
Resolve the issue of the Boxes breaking Omen by adding a timer to how often players can use the box.
Making it 1 time only would only force people to carry more and that's all. Easy to deal with.
And if they decide to make it unclickable while under Para, then they should dissallow bandies, pots or anything else under Para or they're bound for some loud, justified(through pure logic) whining.
As for Resist being useless anyway? I don't know about that. Mana Drain/Vampire, Curse, Necro Spells Duration/Effect, Paralyse and all those Mysticism and Spellweave spells.. And then even more stuff. Like Poison. Yeah before you scream it's too easy to cure I know poisons and potions needs rework but for now, suppose they get it!
I think X-Fielding is sort of hard-coded therefore Energy Fields and probably Stone Walls and so on cannot be made to block each other out or I'd go for that too, to make sure there's no problem.
To improve Resist I'd change it's name to Will Resistance or Will Power and include in it the ability to block or significantly reduce the Weapon Special Moves, including Bushido/Ninja and Consecrate Weapon, Curse Weapon, Holy Light, Wither, AoE of Poison Strike, Stamina Damage from Pain Spike... That sort of thing.
An alternative is always reverting to blocking direct damage spells. Which is only fair as spells never miss and it's always been hotly debated how to counter this.
Evasion is very badly thought out even now by the way, it's either OPed or worthless depending how you make it work- and it also works against everything, not JUST spells so it's good for ALL templates.. Know what I mean? It's not the solution.