Khor, Watcher of the Lands

Whenever a +1/+1 counter is put on Khor,
Watcher of the Lands, choose one—
• Create a 2/2 green Bear creature token.
• It deals 3 damage to target creature with flying.
Landfall— Whenever a land enters the battlefield
under your control, Khor, Watcher of the Lands explores. (Reveal the top card of your library. Put
that card into your hand if it's a land. Otherwise, put
a +1/+1 counter on this creature, then put the card
back or put it into your graveyard.)