Or if you were Night Elf and I tried to escape you can try this method that got my KOTG two levels. When I am preparing to cast Mass Teleport, you can break it like any channel, usually I prefer with Entangling Roots and I die.
Then you can say something like "You are not going anywhere" and I get pissed. But that depends where I teleport as well. It would be suicide mting into the heart of your base. I prefer the outskirts better
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Its called Magic Sentry, and I can't believe you complimented me on a strategy this time
. Easiest on Orc and NE, hard on Humans (ms) and Undead (if you have a shade at your base which is highely unlikely.
To defend it as orc, I usually leave 1 or 2 sentry wards around my perimeter. It may cost me 50 mana, but at least I can see coloured dots coming and quickly stop them.