Every Demon starts with Propulsion in Demon Form. It is difficult and limited to get additional Propulsions, but not impossible.
Propulsions are (as the name suggests) movement abilities, though many of them have other side benefits. For Examples include Phasing, Teleportation or Wings.
Plasma Drive is a highly defensive ability.
Plasma Drive (paraphrased and summarised from page 204 of Demon the Descent)
- Defence does not lower when attacked by multiple opponents in the round.
- +2 Defence against if fighting only a single opponent
- Apply Defence against ranged attacks
- Spend 1 Aether, as a reflexive action to take a Charge action without loosing Defence
Before my last game (a one day, 3 chapter, 10 hour one-shot) I looked at it and thought: "Seems a bit Overpowered. I won't do anything about it now, we'll see how it goes in play." One of my players express a sentiment along the lines of "It would be stupid not to take plasma drive." In the end I don't think he took it, as another player had it as a core part of his build, and the first player thought it better to increase the variety of what the party could do.
On observing it in play, I found the character who took it was untouchable. His defence was huge -- which is easier to do after the God Machine Rules Update. Even combat optimised angel could only get above a chance die to hit him by spending a willpower and/or several essence. To be fair, the character did have a few other defensive abilities like Reality Reinforcement (blocks use of Angel Numina) -- which stopped some of the angels big guns from coming out. As well as Inhuman Reflexes which is a additional +2 to Defence.
I figure I can house-rule/homebrew it into two abilities Removing the hard to get apply defence against guns -- almost nothing in nwod lets you do this, so I figure getting to do this shouldn't also come with a bunch of other great abilities
Plasma Drive (Propulsion)
- Defence does not lower when attacked by multiple opponents in the round.
- +2 Defence against if fighting only a single opponent
- Spend 1 Aether, as a reflexive action to take a Charge action without loosing Defence
Bullet Time (Modification)
Sometimes God Machine Operatives have to act in threat rich environments. Whether they are messengers carrying messages across viciously contested battlefields, or Destroyers required to assault heavily entrenched and prepared foes. The God-Machine has advanced ballistics tracking and reaction capacity installed into such Angels. For them it is as easy to react to a super-sonic bullet as it is to a gang banger with a baseball bat.
- Apply Defence against ranged attacks
Does this seem reasonable, and fitting?
Has anyone else had experience with the Plasma Drive propulsion? Did you house-rule it?
Maybe it is actually less powerful than I think, or is more in-line with the other Propulsions.