Even the Littlest Bud

When Even the Littlest Bud enters and at the beginning of your upkeep, put a +1/+1 counter on the creature with the least toughness amongst creatures you control. At the end of each of your turns, if the creature that had a +1/+1 counter put on it this way is still the creature with the least toughness amongst creatures you control, put another +1/+1 counter on it.{/color#ffffff}