global enchantments when there are 5 already?

[Cainehill]

It definately doesn't take down one of your own first, except as a side effect of choosing one of the five at random - I've blown my own globals down, but have also taken down those of other players while I had some up.

I suspect that Arch thinks it takes down one of his own because he so often has multiple globals up : if a player already has 2 globals up, it's 40% likely to try to override one of his spells, and with 3 up, it's 60% likely.

That's one reason I'll often try to dispel a global if there are five up and I have more than one of my own - means I've got a much better chance of not screwing my own enchantments up.