The White Rabbit

Whenever a demon enters the battlefield, draw a card, then discard a card. If you discard a card with mana value less than or equal to The White Rabbits power, repeat this process.
If a demon you control were to die, you may pay X mana equal to its converted mana cost plus 1. If you do, return it to the battlefield with a finality counter.

Now, we all go down the rabbit hole together.