Praxis, the Undying

First strike, trample
When Praxis, the Undying enters the battlefield, i no other spells were cast this turn you may draw a card. If you do, you may have Peaxis, the Undying deal X damage to target player, where X is the card's converted mana cost.
{r/w}{r/w}: draw 2 cards, Praxis, the Undying deals 2 damage to target creature