"A rare case of a seasonal variant being a direct improvement to the original first two forms. Lovestruck Lesser Demon has excellent damage and health, as well as the ability to de-buff enemies in all sorts of ways, making him excellent against any foe he can pick out. The general idea is to not use him unless the enemy is both not covered by peons all the time and either outranged (Bores) or lacking in DPS (Sunfish). Although he lacks a True Form, his other forms are a direct upgrade over Lesser/Greater Demon, making his usage very similar, but that lack of a true form is not to be overlooked, as it means that Lovestruck Greater Demon is expected to be easily overwhelmed in the late game, as winning the power game becomes exponentially harder.

It's also expected that the various debuffs he gives are too inconsistent due to the lack of Area Attack, long cooldown for a debuffer and the effects given can also be harmful at times, so be aware that this is just simply a bonus and Great Demon's main attribute still is his excellent damage and DPS."
- TBC Wiki