a lot of people use it as a card like Psyduck, Shaymin, TR Articuno and neglect that it has a pretty decent attack.
Huh...
I meant as a bench sitting effect monster like psyduck, shaymin, fez; cards that 99% of the time will not attack but in TR Mewtwo clefairy has a very small chance of being useful so energy should be added for it
Do you think that Articuno could be worth attacking with?
no, going for a basic water for articuno doesn't yield the same potential of a basic psychic