The Burning Escapees

Begin the game with this card revealed.
During your upkeep, each creature gets a -1/-1
counter and becomes red in addition to its colors.
If 5 or more lands are tapped for mana, all five
lands gets a blaze counter. For as long as that land
has a blaze counter on it, it has "At the beginning
of your upkeep, this land deals 1 damage to you."
(The land continues to burn after this role
has left the game.)
When a creature enters the battlefield, it take 3
damage, it takes 5 instead if it