Best ways to kill a Tier 1 caster without being one

[Emmerask]

Hehe i love you guys .This has been a very entertaining read, glad i raised the subject.

To those whining that the caster can't run around with 24hr duration foresight:

Incantatrix. She can persist it for free. Yes it's FR and situational, but still it's quite possible.

To all the geniuses coup-de-gracing the Wizard in his sleep... Read the whole thread before posting, it might help a little.

The problem is that without specifics (ie a specific build of an avg lvl15 wizard) this wizard has become a defensive wonder who plans for very single eventuality he has become THE wizard, A wizard on the other hand is pretty easy to kill.