You don't.
You need a strong water type or a strong flying type to beat it, a ground attack will do well too.
If it is Rival's Grovyle, evolve your starter a lot.
train to lv 36 and it evoves ooooooooooooor if your lazy like me then just use an electric pokemon on menetric and use a lv 20 or higher combusken on the rest , me
u dont get grovlye u get treecko 1st and u get it from steven in slpho co in saffron after u beat the red
Wattson is easy as long as you have a ground type Pokemon like Marshtomp and use ground type moves like mud shot or have a grass type Pokemon like Grovyle or Breloom.
teach it ice or poison attacks
no. but there is a special episode where you get to play as grovyle. (only after you beat wigglytuff and the whole gulid members)
Well..... It all depends on what you're talking about. If it's on Special episode 5 then Dialga kills him. But if it's in the story line, Grovyle goes into the future and you have to beat Primal Dialga. Then the future Pokemon die.
You can't get him to join you... BUT... in the end, when you beat primal dialga, you will unlock the final special episode you can play the game as him. The whole gang'll be there, sableye, primal dialga, spiritomb, dusknoir, celebi and Grovyle. If you aren't talking about the one who was your friend when you were human, then there's a grovyle in mystery jungle. look at serribi.net (sorry if I misspelled it)
* you get to fight your dad after you beat flannery the 4th gym leader. I'd ready with alot of water types trust it took me forever to beat cuz i had no water types and grovyle was my stater i'd be
torchic I like Pokemon so much that i almost played every Pokemon game Well this is an opinion question If you're looking at defeating the Elite 4 treecko's probably best.... I beat the Pokemon league like 100 times already and I have a lv. 100 Grovyle and Rayquaza... I don't like Sceptile too much... Grovyle's speed is a good advantage The only trouble you may get is with the Fire and Flying gyms... but Leaf Blade is a really good move.... Grovyle can also learn Arial Ace... wich will come in handy for Lorelei's (Elite 4 # 2) Ghost type Pokemon.... The dragon trainer is always hard (drake Elite 4#4) And champion Wallace has all Water type Pokemon (Grovyle has a huge type advantage)
unlock mystery jungle (30 floor dungeon and unlock it after beating darkrai through random spinda caffe request ). grovyle should appear after about the first 5 floors. However, if you meant the grovyle that assists you, no, he remains in the future (beat dialga and play the sub-story to see what happens to him). He only temporarily joins your team though, as you two play through hidden land and treeshroud forest
You can train it to level 29(which sucks) so it can learn leaf blade. Or catch a geodude in dewford tunnel. A machop or makuhita would work, too, to take out magnemit and magneton. If you still have absorb on a high level grovyle, keep using that. Even an aron would work well as electric moves would do little damage. Just keep trying, I had grovyle, and I couldn't beat the gym until he learned leaf blade.