There seems to be a bug with this ability when combined with Fire Princess. If Fire Princess is on the field when this ability is triggered, then Fire Princess' effect never triggers to damage the opponent by 500 despite gaining the life points from Fairy's Smile.
Perhaps the LP gained should be from a card effect. The same case for Mokuba's skill Monstermorph which doesn't trigger monster effect in the graveyard when used as tribute to summon another monster with the Skill.
Mausoleum of emperor card draw and lots of high level fairy's, I'm in legend because of this shot. Be humble
1000 LP?!?!?! (At least when it decides to work. I swear that NPCs were bugged with this skill to 500) Holy crap this skill can be nuts. Dunames Dark Witch especially makes this dangerous. Unless you're up against power of the dark Yami Yugi, what are ya gonna do.