My GM offered me four fate points to go down a dark alley, my question is how many people would think four just obviously means one hell of a royal impact on the game. Most of my party said no, just no, if its worth it... however I just couldn't say no, i mean what the worst that could happen?

I think I've been running it combined but presumably the only reason is I has dimulative size meaning i can only do 1 stress in attack anyway but I do believe that it needs to be one or the other as it is so powerful. Saying that its a 3pt investment so it really should be

I'm going to be involved in a game in the next few months and was thinking I would try a were-form spider.
Clearly spider walk and dimunitive size are pretty straight forward.
Was also considering claws: venomous which would clearly fit.
However I was thinking, obviously would need GM approval, of creating my own power for the web though.
I was looking at breath weapons, however I didn't see it fitting particually well as it's not really ranged or a weapon.
So I was thinking making it like a stunt where it adds an extra trappings to a skill, one in which it would allow to tag certain aspects like entangled if given enough time to prepare.
I was wondering what peoples thoughts are for the actual mechanics and the skills it use, maybe survival?