Lavaar, Mischievous and Dark

Flying, hexproof
When a land enters the battlefield put that land
in the middle of the battlefield. All players can
use that land's abilities once each of their turns.
If a player has 6 or more lands they can't use
any abilities from that land and spells they cast
can't trigger any of that land's abilities.
They wished upon the magic lamp, but it gave them
the opposite of good.