Meteor Fields

At the beginning of your upkeep, flip a coin.
If it comes up heads, you may reveal the top card of your library. If its a nonland, noncreature spell, you may play it without paying its mana cost.
If it comes up tails, Meteor Fields deals 2 damage to you.
Ice-covered debris from the skies of Auriga, many strange treasures lie within these rocks.