Khalil, Maniacal Genius

Flying, defender
Khalil's toughness is equal to the number of Coin tokens you control plus 1.
When Khalil, Maniacal Genius enters the battlefield, create X colorless Coin artifact tokens with "Sacrifice two Coin tokens: Add one mana of any color to your mana pool."
{t}, Sacrifice a Coin: Draw a card, then discard a card.