The Winged Dragon of Ra

Tribute 3 (You may cast this card by sacrificing
three non-token creatures rather than paying its mana
cost and if you do it cannot be countered.)
Shroud, Lifelink
When this card enters the battlefield pay x life
where x is your life total minus 1. This creature's
power and toughness are each equal to x. Pay
3 life: destroy target creature with power 3
or less.