Collector Ouphe

Activated abilities of artifacts can't be activated.

Yarok, the Desecrated

Deathtouch, lifelink
If a permanent entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Shrieking Drake

Flying
When Shrieking Drake enters, return a creature you control to its owner's hand.

Dream Stalker

When Dream Stalker enters, return a permanent you control to its owner's hand.

Earthcraft

Tap an untapped creature you control: Untap target basic land.

Cloud of Faeries

Flying
When Cloud of Faeries enters, untap up to two lands.
Cycling {2} ({2}, Discard this card: Draw a card.)