(("The dice say yes/no" doesnt really sit right with me when it comes to these sorts of situations, in my mind its just a question of whether or not Thalsian needs to draw his runes directly onto someones body or whether it just needs to be touching them.
Unless you are saying he cant give me powers because im an animate lump of metal?))
The second would be the consideration, yes. Where do you sit on the Scale of Manton Effectiveness? Where is Thalsian's power?
Consider Weld. His inorganic composition means that he is immune to powers that only affect living things. This means that he cannot be controlled by Regent or absorbed by the big bogerman under Brockton Bay, but it also means that Panacea cannot heal him.
If it makes you feel better, if the runes would have had any effect on you, that talisman thing would have worked.
And, honestly, sometimes it really does seem like a crapshoot about how powers interact. Skitter's power works through portals, but Mantellum's does not. There are probably a bunch of detailed reasons why, in the paraphysics of the Wormverse, but I don't want to get into that stuff and so just simulate these effectively random bits with a die roll.
As a comparison: You do not complain when I roll to see if you, for instance, hit an enemy. But no part of that is really luck, in the way that (say) radioactive decay is. It is determined by such thing as relative stances, split-second decisions based on the (technically) logical decision-making pathways of the brain, and so forth...but rather than figure out each of those things, we just roll a die.
Delphinium bites her lip. That much damage and Naga had just arrived? Even if Naga left right now, that would still be a ton of people dead or injured. Her med station was in [location] so...
((need more information about where I am))
PRT HQ. It's that gray square on the map.
-snip-
Um, you are not in yet.