Hapatra, the Desert Frost (215)

Mana cost
Mana value	4.0
Type	Legendary Creature — Human Wizard
Rarity	uncommon
Colors	U
Power / Toughness	4 / 3
EDHREC rank	30740

When Hapatra enters, for each opponent, tap up to one target creature that player controls. Put a stun counter on each of those creatures. (If a permanent with a stun counter would become untapped, remove one from it instead.) {2}{U}: Untap target creature.

"Kefnet always told me to apply my knowledge. I merely chose to apply it in usurping him."