Paul, Duke of Arrakis

Desertfall - Whenever a Desert enters the battlefield
under your control, create Shai-Hulud, a legendary
6/6 green Wurm creature token with Annihilator 3
and, "Whenever this creature dies, Amass Fremen
X, where X is it's power."

Tap an untapped Desert you control: Target
creature can't block, or be blocked this turn.