Paul Ateides

Whenever Paul Atreides deals combat damage to
a player or planeswaker, you may reveal the top
card of your library. If a Desert card is revealed
this way, you gain 3 life. If a card with
Desertwalk is revealed this way, create a 1/1
green Human Warrior creature token with
Desertwalk. If a creature with mana value 5 or
greater is revealed this way, create a 5/5 green
Wurm creature token.