Calax#403, Rebel Smuggler

When Calax#403 enters the battlefield and
whenever it attacks or blocks, exile the top card
of you library.
You may play land cards exiled with Calax#403
as long as an opponent controls more lands than
you. The same is true for artifact, creature, enchantment and planeswalker cards exiled with it.
"As long as there is an oppressor, we shall not rest"