Team Avatar Team Avatar is a flexible card that shows off white's way to burn creatures down, and that's with it's strength in numbers
Getting one Treasure per rotation of the table, unless your opponent really wants to draw cards, isnt worth a four-mana investment
In that case, Nettling Nuisance's ability triggers once for each player that Faeries you control dealt combat damage to, regardless of how many creatures were dealing that damage
Flickering it allows you to reset your choices and keep copying spells
It at least makes sure you keep bodies on board, assuming your graveyard stays stocked and you're not playing too much recursion
A card like Toph, Earthbending Master can rack up experience counters if youre ramping, while Zuko, Firebending Master is excellent in a combat-focused deck with instant speed or flash auras, and so on