Oath of Kiora

When Oath of Kiora enters the battlefield, untap up to X target permanents, where X is half the number of planeswalkers you control, rounded down.
Whenever you cast a planeswalker spell, if you control 5 or more planeswalkers, put an 8/8 blue Octopus creature token onto the battlefield.
"I will never abandon Zendikar again. I will keep watch."