As far as I'm concerned, you can't pick Teleport in dominion. However, in custom games, Master Yi bot has it. I haven't tested it out in Co-op vs. A.I. games yet.
Now, I'm pretty sure that he can't even use summoner skills in custom, but it's just something that annoyed me. Just throwing it out there.
© 2014 Riot Games, Inc. All rights reserved. Riot Games, League of Legends and PvP.net are trademarks, services marks, or registered trademarks of Riot Games, Inc.