Devolution still works on pokemon with attached energy when toedscruel ex is in play

Assuming you're talking about TM Devolution it should fizzle, are you sure Path to the Peak wasn't in play?

Cancelling cologne?

Maybe the effects meants in the toedscruel ex ability was the special condition(e.g. poison, sleep, etc)?

Incorrect. Applies to attack, but the ability applies to any energy type, special or basic, as the text does not specify what energy category applies to ability.. .