Munchlax learns flamethrower, thunderbolt, Ice beam and psychic. So THAT "baby" pokemon can roast you with fire, electrocute you, give you hypothermia and break your neck without even touching you, by means of psychic's telekinetic stuff. Mantyke learns Hydro Pump, Hail, Scald and Twister. It can Crush you under water pressure, Bury you under hail, Boil you with scald AND Tear you with a twister. AND Cleffa learns Toxic, Double team, Fire blast, Attract, Fling, Thunder wave, Belly Drum and Protect. it can poison you, gang attack, fry you, infatuate you, throw stuff at you, paralise you, get ridiculous attacking power with belly drum, and can shield itself from anything that makes it through paralasis and infatuation. it also gets metronome, giving it the potential for attacks as weak as stupid splash to as deadly as causing actual earthquakes, spewing lava over you, or Piercing you with a ghost arrow! these are all babies, may I remind you! And pichu learns thunderpunch, BTW! so it CAN punch you, with the added bonus of an electric shock, despite it probably not having enough muscle power to use something like dynamic punch. Pichu also gets toxic and Wild charge!
MY point is, pokemon babies can launch all sorts of deadly things at you, so count yourself lucky if all they do is punch you.