should Warp w/ Tunnel be allowed the PartialChange enhancement from Insubstantiality?

[Plane]

Normally when you go through a warping tunnel AFAIK all of you has to go through, but I was wondering about stuff like where you open a tunnel and just stick your arm through while the rest of you stays behind, grab something, and then pull your arm back through the tunnel bringing that thing back.

[Curmudgeon]

Originally Posted by Plane

Normally when you go through a warping tunnel AFAIK all of you has to go through, but I was wondering about stuff like where you open a tunnel and just stick your arm through while the rest of you stays behind, grab something, and then pull your arm back through the tunnel bringing that thing back.

Partial Change from Insubstantiality allows you to alter only part of your body to being Substantial/insubstantial. The ability is moot to Warp since you are just as material on one side of the Warp as you are on the other.

Warp is teleportation. With the tunnel enhancement, other people can teleport to the place you went for a limited time, without having to teleport with you at the same time. That's all it does.

If you want to be able to just reach through, grab something, and pull it back that's Snatcher and you need to buy it instead of, or in addition to, Warp with Tunnel. You get the ability you pay for and Warp isn't a substitute for Snatcher. On the other hand, if you Warp completely where you're going and have the carrying capacity to do so, you could pick up the grandfather clock at your destination and drag it back through the tunnel with you. Mind you, if there are security guards there to stop people from walking off with said clock, you've got to get into the tunnel without them stopping you, and until the tunnel collapses/goes away, they can follow you.

[JulianLW]

Unlike Curmudgeon, I don't think you need to buy Snatcher. You've already bought Warp with Tunneling in order to create an open doorway to a distant location. Do you need to buy Snatcher to reach through a door and grab something on the other side?

I would just call this a regular task with a DX penalty - a technique. I'd do it exactly like "Attack from Nowhere" from Powers: The Weird - perhaps with the addition of acting blind (is that a -10 penalty?) unless you can see through the Warp tunnel - which is probably just a feature, right? (But if you can see through the tunnel, then folks on the other side can see you too....)

[Plane]

Originally Posted by Curmudgeon

if you Warp completely where you're going and have the carrying capacity to do so, you could pick up the grandfather clock at your destination and drag it back through the tunnel with you.

wouldn't warping back to your start point require making a 2nd tunnel? thought each warp was a 1-way journey

Originally Posted by JulianLW

You've already bought Warp with Tunneling in order to create an open doorway to a distant location. Do you need to buy Snatcher to reach through a door and grab something on the other side?

I'm just not sure if Warp is meant to work like a 2-way door, it might work like a 1-way vacuum where once you step through you go through an irresversible tunnel that spits you out and you can't get back without making a 2nd tunnel that designates the opposite direciton?

[Curmudgeon]

Originally Posted by Plane

wouldn't warping back to your start point require making a 2nd tunnel? thought each warp was a 1-way journey

<snip>

The tunnel lingers for 3d6 seconds. While it lingers, it connects both ends of the tunnel. Anyone can use it, in either direction, while it is present, so no, you don't need to create a second tunnel while the first still exists if you want to return to your starting point. Nothing prevents you from creating and using a second tunnel, though the two can't occupy the same endpoints while they both exist, but you only need to create a second tunnel to get back home after the first tunnel's existence ends.

[Plane]

Originally Posted by Curmudgeon

The tunnel lingers for 3d6 seconds. While it lingers, it connects both ends of the tunnel. Anyone can use it, in either direction, while it is present, so no, you don't need to create a second tunnel while the first still exists if you want to return to your starting point. Nothing prevents you from creating and using a second tunnel, though the two can't occupy the same endpoints while they both exist, but you only need to create a second tunnel to get back home after the first tunnel's existence ends.

Powers 89 doesn't seem to go into any detail as to whether the portal just appears at one end or both, do you know of any examples which make it clearer?

[johndallman]

Originally Posted by Plane

Powers 89 doesn't seem to go into any detail as to whether the portal just appears at one end or both, do you know of any examples which make it clearer?

I did not find any, and had to decide myself when running a campaign where there was a lot of use of Jumper with Tunnel.

[naloth]

I've treated it as a 0% to define it as either a one-way or two-way tunnel, and a +20% if you can switch between.

It comes up occasionally. If you're doing a two-way tunnel to grab or punch, that also allows someone to grab or punch you. It's also handy if you want to jump through for a few seconds, then return to where you came from without having to roll again.

One-way tunnels tend to be safer because you don't have to worry about what's on the other end (water, gas, oncoming traffic). It's also a good way to look where you're about to travel (view port).

[David Johnston2]

Originally Posted by Plane

Powers 89 doesn't seem to go into any detail as to whether the portal just appears at one end or both, do you know of any examples which make it clearer?

If you look at the fiction, it is extremely rare for the portal to be one-way. By default it would be two way.

[Aldric]

Originally Posted by David Johnston2

If you look at the fiction, it is extremely rare for the portal to be one-way. By default it would be two way.

I'll go right ahead and quote Stargate to you and say "Why would you assume matter can travel both ways ?" :D

But yes, generally portals are seen as two ways, and there is often no tunnel, you just step through the gate and on the other side you're somewhere else. Often you can look through, sometimes you can't.

So I guess it's again a GM's job to decide what's the default for the setting and how much are the different options.

Might also be worth considering what happens when you're halfway through and the portal closes.