Pusheen, Taco Lover

When Pusheen, Taco Lover enters the battlefield, discard a card if X= 4 or less. If X=5 or greater, Draw a card. Then, choose X numbers from 1-20. Then roll a twenty sided die. If it lands on one of the numbers you selected, Pusheens power and toughness become equal to X times Four until Pusheen, Taco Lover leaves the battlefield.
Tap Pusheen, Taco Lover and pay {1}{u}{w}: Return Pusheen, Taco Lover to your hand.