CardName: Carla, Elite Academic
Cost: {1}{W}{W}
Type: Legendary Creature - Human Advisor
Pow/Tgh: 3/3
Rules Text: Maestro {W}{W} (Whenever this creature becomes the target of
a spell or ability, if it's not a Maestro, you may pay
{W}{W}. If you do, put a +1/+1 on it and it becomes a
Maestro.)
Whenever Carla, Elite Academic or another creature you
control would become a Maestro, put an additional +1/+1
counter on it.
Flavour Text:
Set/Rarity: Libelone Rare
Carla, Elite Academic
R
Legendary Creature – Human Advisor
Maestro (Whenever this creature becomes the target of a spell or ability, if it's not a Maestro, you may pay . If you do, put a +1/+1 on it and it becomes a Maestro.) Whenever Carla, Elite Academic or another creature you control would become a Maestro, put an additional +1/+1 counter on it.
Only made this legendary because I was unsure if multiple copies of this out would be too strong.