1) A summoner with Channeling can act freely when possessed.

2) A possessed character has mental & special attributes equal to the spirit's Force.

Does this mean that a summoner with a Magic of 1 can choose to suck up the drain & summon a Force X spirit into himself, and then proceed to bind it using his new Magic of X? And resist the drain with 2X?

'Cause at that point being a magical dabbler is very easy, as is being a viable near-burnout (Essence 1).

You still need a good willpower to resist mana spells (and the killer drain).

I imagine your astral signature will be something like the radiospectrograph of a Tokamak, but that seems sort of legal...

Well one spirit would leave just prior to the other spirt possessing you.

So say you had a magic 1 and summoned a force 2 spirit that you channelled. So now you can summon a force 4 spirit. But when you attempt to channel it the force 2 spirit must leave before you can channel the force 4. Thus your magic drops down to 1 and the force 4 spirit it two powerful.

I think if anyone wanted to try that in a game I was involved in, I'd kick him in the head for being stupid. Clearly it was never the intention of the developers that a magic 6 mage should summon a force 12 spirit to possess him, and then use the increased power gained to summon a force 24 spirit to possess him.

Don't forget 'though that Magic isn't part of the drain resistance. It is Willpower + Something. So just because your magical power is going up rapidly with this tactic your drain will lag behind. The Force 12 will do a massive number on you, let alone the Force 24. Your character would have to be specialized for doing this trick.

I'm with ornot on this one.
If I player came to me with this idea I'd say, "Haha, oh yeah, the letter of the rules does allow that, doesn't it? That's funny. Well, we both know that's obviously absurd, but thanks for pointing it out, here's a point of karma for actually reading and understanding the rulebooks."
note: I'd skip the point of karma if it were a munchy player that did this crap all the time.

...this is a big loophole for if you are possessed and channeling and then summon that force 4, what would stop you from turning around and summoning a higher force spirit after that?

Any PC that attempts this in my game immediately receives a remotely triggered firkin size FAE.

For me, the jury is still out concerning allowing PCs to learn posession traditions.

Channeling a Force 2 spirit to summon a Force 4 spirit is sort of like marrying a rich ugly girl so that you can use her money to attract a rich pretty girl. In the end, they're both going to bitchslap you and kick you in the testicles, both literally and figuratively, repeatedly.

The trick is to kill her, and summon a spirit to possess her. Preferably one with a personal illusion or glamer spell/power.

Once this is done, you can use the dead thing as bait for other rich and ugly people.

Every single time you command each spirit you'll be taking Physical Drain because you won't have the higher Magic attribute until after you get possessed by the new one (which won't happen until it's already out of the binding circle).

So yeah, you can go from 1 to 2, from 2 to 4, and from 4 to 8. But each round of summoning and binding is physical drain and if you pass out you'll die. It's risky enough that I'd think getting yourself a Magic Attibute of 4 would probably be easier.

Especially as you Initiate Grade can't go higher than your base Magic Attribute, so you won't be able to have extended masking and channeling unless you bought yourself a Magic Attribute of 3. At which point, what's the point?

-Frank