In Generation IV, Sceptile can be taught TM19 Giga Drain. In Generation V, only Treeko can learn Giga Drain at level 46. Treeko evolves into Grovyle at level 16 and Grovyle evolves into Sceptile at level 36.
47
Lombre cannot learn Giga Drain. It can be learned, if bred with a Pokemon who knows the move.
Garchomp cannot learn Giga Impact from leveling up in Pokemon Platinum. Garchomp can learn Giga Impact from the TM that teaches it which is TM68.
Sorry...it's at level 100... or by TM68
His best moves are leaf storm frenzy plant giga drain leaf blade in my opinion
Beedrill learns: Fury Attack at level 10; Focus Energy at level 13; Twineedle at level 16; Rage at level 19; Puruit at level 22; Toxic Spikes at level 25; Pin Missile at level 28; Agility at level 21; Assurance at level 34; Poison Jab at level 37 and finally Endeavor at level 40. However, it can also learn many different moves from TMs and Move Tutoring.
Roselia learn giga drain at 25 before evolve to roserade.
Level 25
100
Withdraw - 5 Absorb - 9 Razor Leaf - 13 Curse - 17 Bite - 22 Mega Drain - 27 Leech Seed - 32 Synthesis - 37 Crunch - 42 Giga Drain - 47 Leaf Storm - 52 Grotle evovles in to Torterra at level 32, however.
lv 51
moves like curse bite earthquake razor leaf chomp grass hammer giga drain drain health mega drain and more!
You'll need to level these Pokemon to a certain level to get Giga Drain. (Giga Drain isn't a TM.) Oddish, Gloom, Paras, Parasect, Hoppip, Skiploom, Jumpluff, Sunkern, Treecko, Beautifly, Shroomish, Roselia, Turtwig, Grotle, Torterra, Leageon, Snivy, Servine, Serperior, Cottonee, Petilil, Maractus, Foongus, Amoonguss, Shelmet, Accelgor, and Virizion.
No. It can't learn Mega Drain but it can learn Giga Drain.
Treecko will learn: Pursuit(level 16), Screech(level 21), Mega Drain(level 26), Agility(level 31), Slam(level 36), Detect (level 41), and Giga Drain(level 46)
Lombre cannot learn Giga Drain. It can be learned, if bred with a Pokemon who knows the move.
In the Pokémon series of video games, Torterra, the final evolution of Turtwig, is obtainable by leveling up Grotle to level 32. At level 32, Torterra learns the Earthquake move. Afterwards, it learns Leech Seed at level 33, Synthesis at level 39, Crunch at level 45, Giga Drain at level 51, and Leaf Storm at level 57.
From my experience, you cannot find or buy the move Giga Drain In Pokemon Emerald. It is only a learned move. If you have a Shroomish, it will learn Giga Drain in one of its advanced stages.