Fairy Ring

If this card is attached to a forest as an enchantment then that forest gains the effect
"{t}{x} Regenerate a creature of your choice from your graveyard. Where X is the summoning cost
of the chosen creature."
If this card is attached to a Mushroom Forest as an enchantment then that Mushroom Forest gains the effect "{t} Remove X mushroom counters from this card and regenerate a creature of your choice from your graveyard, where X is the summoning cost of the chosen creature."