Freyjalise of the Advent.

+1: Until end of turn, elves have "Add G." Those already with this gain "Add one W or U." (Transform side: Freyjalisian JoutnBaum.)
-4: Create Clue, Food, Mask, & Treasure Tokens. A Mask is a G/W Emblem Enchantment with Enchant Permanent, Totem Armor, "This is an Elf and Forest."
-7: Emblem "Whenever an Enchantment enters or leaves the battlefield, you may Draw a card and return Freyjalise of the Advent. to your hand."