Prismatic Ending

2, T, Sacrifice this artifact: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

T: Add G.

Flying Whenever an opponent draws a card, you may draw two cards.

Counter target spell.

When this enchantment enters, search your library for a legendary creature card with mana value X or less, exile it, then shuffle. At the beginning of your first main phase, you may introduce the exiled card using an introduction you haven't used this game. If you do, put that card onto the battlefield. It gains haste. Exile that creature at the beginning of the next end step.

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

T: Add G.

Enchant Forest As this Aura enters, choose a color. Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.