Mab, Goddess of the Moon

When Mab enters the battlefield and at the
beginning of your upkeep, you may exile target permanent you control. If you do, exile target permanent that shares a card type with it.
Indestructible, Hexproof
{x}{c}: add {x} of any one color to your mana pool.
If you control more than 10 permanents, Mab
isn't a creature.