Because it has nothing to do with dragons.
Dragon-type moves are only super effective on other Dragons. However, they usually have high stats and can learn attacks of any type (depending of the Pokémon) either by leveling up or by TM's or HM's.
Druddigon is a Dragon type pokemon.
dragon Pokemon are weak against ice attacks as well as dragon type attacks.
Dragon type moves are only strong against dragon type Pokemon.
Dragon type moves are only super-effective against other dragon Pokemon. However, if the dragon type move is on a dragon-type Pokemon, the move will do substantial damage to many different Pokemon. This is because, dragon-type Pokemon usually have outstanding stats which make them stronger than other Pokemon.
Aerodactyl is a Rock-Flying type pokemon.Aerodactyl is a Rock/Flying type Pokémon.
It is Rock and Flying type
surf can only be learned by water type Pokemon or sometimes Dragon (except Aerodactyl) but surf can also be learned by Snorlax.
rock and flying
Aerodactyl is #142 in the national pokedex, and it is a Rock-Flying type Pokemon.
Dragon-type moves are only super effective on other Dragons. However, they usually have high stats and can learn attacks of any type (depending of the Pokémon) either by leveling up or by TM's or HM's.
The Pokemon leaguewere you have to beat 4 Pokemon trainers witch have 5 Pokemon each, then the Pokemon champion lance who uses mainly dragon Pokemon.Here is the line up for the championGyrados (Water/Flying)3 Dragonite's (Dragon/Flying)Charizard (Fire/Flying)Aerodactyl (Rock/Flying)but all of them have dragon type moves
Dragon Pokemon are weak against themselves actually (DRAGON type), but they are also weak against ICE types. ICE works very well against Dragonite since it is a FLYING type as well which means you get a 4x damage bonus, the same goes for Aerodactyl even though it is a ROCK/FLYING Pokemon. Hope this helps :)
use a non dragon pokemon that can learn a fisical dragon attak!! that should do it. (please dont chose aerodactyl cause he is type rock!!!)
Aerodactyl is a Rock and Flying type Pokemon it's weaknesses are: Water, Rock, Ice, Steel, Electric.
Ice type Pokemon can easily defeat lance's Pokemon also for his gyrados and aerodactyl you can use an electric type.
Druddigon is a Dragon type pokemon.