Pretty much the topic. How do you mages like to use master spells, of any skill? I haven't really found a time yet where I've needed to use them since they take SO long to cast and d hide only lasts 45 secs for me. So... How do you use them?!

Bump...

I don't use them because they are terrible. The only good opportunity I can think of is to open with them from Invisiblity but this obviously doesn't work if you have a follower (which would make Master spells a bad idea anyway).

Very true. Yeah I was thinking and I really don't want to waste a perk in spells that take 7 secs to cast... I'll be destroyed halfway through the cast.