Other dragon type moves and ice
I think dragon types have two weaknesses and that is other dragon and ice types.
Dragon and Ice types are super effective.
ICE AND DRAGON TYPE.BUT THE BEST IS ICE TYPE.TRUST ME!
its only weak to dragon types
Ice and Dragon types
Altaria is a dragon and flying type, so: 4x: ice (both dragon and flying types are weak) 2x: dragon (weakness of dragon type) and rock (weakness of flying type) Note dragon types are resistant to electric attacks so it will not be super effective.
Ice, Fairy and Dragon-type moves. You have to consider their secondary typing, though.
A dragon type's weakness is, believe it or not, is dragon type.
Fraxure is the Dragon Type, so it's super effective against Dragon and Ice Types.
Legendary dragon weakness is legend dragons
Gummys weakness is ice
dandelion dragon weakness is earth and ice dragons.