There is no Ancient Power TM in Pokemon Platinum, It can only be taught by leveling up, Move tutoring or by learning it from a Pokemon from an egg.
its a move your Pokemon might learn
There are two pokemons that have this move: Togepi and giratina.
tangela evolves when it learns the move ancient power then you get tangrowth... :D
You get a tangela to level 33 and teach it ancient power (which it learns at lvl 33)
Heal Block, Roar of time, Ancient power and Dragon claw.
its a move your Pokemon might learn
You can't buy it, it comes with a pokemon.
level 33
when get attack Ancient power.(lv33)
You need to teach Piloswine Ancient Power.
There are two pokemons that have this move: Togepi and giratina.
Teach it the move ancient power and then level it up
By level up while knowing Ancient Power.
At level 32 after teaching it the move ancient power.
You get a tangela to level 33 and teach it ancient power (which it learns at lvl 33)
You must learn it Ancient Power and then you level it up. Then it evolves into Mamoswine.
tangela evolves when it learns the move ancient power then you get tangrowth... :D