Treachery

{3}{U}{U} · Enchantment — Aura

Enchant creature When this Aura enters, untap up to five lands. You control enchanted creature.

Motor: se resuelve a mano

Rulings (2)

You choose which lands to untap as the triggered ability resolves. They aren't targeted, and they don't have to be lands that you control.
Wizards of the Coast · 2022-12-08
You can untap 0 to 5 lands.
Wizards of the Coast · 2004-10-04