Nelumbo, Lotus Spirit

+2: Untap target artifact you control. Until your next turn, it gains "When this artifact enters your graveyard, return it to the battlefield tapped"
-2: Add 3 mana of any one color.
-10: Add {w}{w}{u}{u}{b}{b}{r}{r}{g}{g}. You gain an emblem with "You don't lose uspent mana as steps and phases end."