Geizerguul, Of Cursed Fortune

When Geizerguul, Of Cursed Fortune enters the battlefield, you may pay half of your life rounded up, if you do, choose one ---
Put seven 1/1 green Squirrel creature tokens onto the battlefield under your control;
Put seven colorless Treasure artifact tokens onto the battlefield with "{t}, Sacrifice this artifact: Add one mana of any color to your mana pool."