Elven Power-ring

As long as Elven power-ring is equipped to an elf,
elves you control get +1/+1, and whenever you gain life, you draw a card.
Equipped creature gets +1/+1. If equipped creature is an elf, it gets +3/+3 instead.
Equipped creature has Vigilance and Lifelink.
You can have up to 3 cards in your deck named
Elven Power-ring.
Equip:{3}{w}{g}
Equip elf:{1}{w}{g}