Warden of the Kian Belt

When Warden of the Kian Belt enters the battlefield, create a 1/1 white Cat creature token with "Training {g}{w}"({g}{w},{t}, Tap an untapped creature you control with power greater than this creature: Put a +1/+1 counter on this creature.)
Whenever Warden of the Kian Belt becomes tapped, exile it. Return it to the battlefield under its owner's control at the beginning of the next
end step.