Shrine of Fruitful Pasts

Creatures you control have Aetherize 1 (Whenever a creature you control dies, you may add one mana of any one of the colors printed on that creature's card to your mana pool. Mana added this way does not empty from your mana pool as steps and phases end.)
After my death, lay me in the forest. I wish to become part of this beautiful world's immortal nexus of life.