[starslayer]

I had another few thoughts- what are the limitations on your snatching ability?

If you can snatch at exceptional range '1g of sand from an antimatter dimension' will basically end, well, everything.

You could also leverage a lack of understanding.

Snatching 100kg of cesium and dressing it up like a useful thing to have will result in some widespread destruction once someone takes it out of the oil bath it will have to be floating in. Figuring out how to have that take place near the arcmage will be a challenge, but a sufficiently advanced lock and heavily reinforced casing will mean that some sort of magic will be a much easier way to open it then TL5 tools.

Similarly summoning up some near-critical materials in a lead box could be useful. Whoever opens the box gets a leathal dose of radiation- figuring out how to make sure the arcmage opens the box instead of his minons might be difficult.

Snatching something that is useful to an arcmage, but also deadly, is another good option; having a staff of '+3 to magery' is going to interest anyone who does magic. If that staff also happens to be made of polonium...