Fetches also enable triggering landfall twice in the same turn, which is valuable if youre playing Omnath, Locus of Creation, Ruin Crab, or Hedron Crab
To clarify this just in case, that doesnt include any buffs like counters, just the creatures original stat for power unless changed by something that redefines that power above 1, like Harmonious Archon or the creature has a variable power, like equal to the number of lands on the field
Other than its Poke-Power, if you have a full bench with a lot of energy cards attached to those Pokemon, Gardevoir's moves are decent, Energy Burst could have the potential to do 60+ damage but neither of its moves can do much more than 60
Colourless Pokmon are usually strong against other Colourless Dragon Pokmon
Chances are you wont see too many of them at your local FNM