Objectmons are some of my favorite, but you can't breed any of them for IV's or extra moves. Lower stats + lack of early TM/tutor availability + no egg moves + can't specify Hidden Power type makes them weaker than their counterparts (event encounters that come with egg moves and are breedable, like DD Scrafty, Wish Eevee, etc.)
Some examples:
- Bronzong (Trick Room, Psychic)
- Metagross (Earthquake)
- Claydol (Psychic, Earthquake)
- Cryogonal (great level-up movepool)
- Dhelmise (no decent physical grass/ghost TM's)
- Electrode (Thunderbolt, Hidden Power Ice/Grass)
- Klinklang (move puddle)
- Solrock/Lunatone (Zen Headbutt/Earth Power/Ice Beam)
- Magnezone (Thunderbolt, Hidden Power Fire/Ice)
- Minior (Acrobatics, Earthquake, Rock Slide/Stone Edge)
- Porygon (Ice Beam, Thunderbolt, Shadow Ball, Dark Pulse, Toxic)
- Rotom (Thunderbolt, Shadow Ball, Will-o-Wisp, Pain Split)
- Starmie (Thunderbolt, Ice Beam, Surf/Scald, Dazzling Gleam)
For others that like these guys, do you run whatever STAB's you have available + support/status, or do you have to bench them with later episodes as opponents get stronger?