Reality Spiral

If a creature were to enter the field, add a counter to Reality Spiral. When Reality Spiral reaches 15 counters, destroy all spells except for Illusions or Spirits.
{r}{w}{g}{u}{b} (All players must contribute at least one mana.) Remove 2 counters from Reality Spiral and anything else with counters.
Reality is not concrete. It is ever-changing. Whether it be for construction or deconstruction.