>>25333212Mew already gets Roost. Unless you're worried about type-changing moves or Soft-Boiled Imprison Smeargle (MAYBE in Doubles?) Roost is better due to more PP.
I'm more concerned with Calm Mind Serene Grace Blissey with Tri Attack. Of course, Chansey could use it, but only 35 Sp. Atk.
There's also the issue that they have Hyper Voice, which hits harder, and through subs/protect, due to being a sound move.
Still, some people might appreciate a new special status-inflicting STAB on the pink blobs.
http://bulbapedia.bulbagarden.net/wiki/Tri_Attack_%28move%29#By_TMRage is also a TM so that might be interesting on some 'mons.
Psywave might be neat, since it's the gambler's version of Seismic Toss/Night Shade; It can deal anywhere between 0.5 and 1.5 times the user's level.
Skull Bash might be neat. A lot of things got it via TM in Gen 1, and it could be neat with Power Herb or such. The +Def on the charging turn isn't bad also.
And I suppose Bubblebeam could be neat on the Sheer Force Nidos. It's water-type coverage, if they ever want it, for some reason. It could also be an option for Technician Meowth/Persian.... If its power were reduced by 5.
