Assuming we could somehow transfer Pokemon from gen 1/2 too 3 and up what old TM and event moves would actually be useful?

http://bulbapedia.bulbagarden.net/wiki/List_of_Gotta_Catch_%27Em_All_event_Pok%C3%A9mon

Zap Cannon Squirtle is pretty interesting and Growth Eevee could defiantly be useful.