Those who seek to disturb the harmony of life will see their instruments taken from them.

Linvala, Keeper of Silence

Flying
Activated abilities of creatures your opponents control can't be activated.

"Mother of Light! Her warm embrace extends through ev'ry plane, for person and beast alike."
—*Song of All*, canto 702

Secret Lair Drop

Jumpstart

Modern Masters 2017

Rise of the Eldrazi

Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.

Linvala’s last ability affects only creatures on the battlefield. Activated abilities that work in other zones (such as bloodrush or unearth) can still be activated. Triggered abilities (starting with “when,” “whenever,” or “at”) are unaffected.

No abilities of creatures your opponents control can be activated, including mana abilities.