Trollface, Troller Of Doom

Flying, hexproof,
This spell cannot be countered.
When this creature enters the battlefield, draw {x} cards.
As long as this card is in the battlefield, you have no maximum hand size.
At the beginning of you upkeep, if you have more than 20 cards in your hand, you may pay {5}. If you do, you gain 2 life and you draw {x} cards.