mtg card stock 310gsm Black Core TCG Cardstock - DIY Proxy - Blank Smooth Blackcore Playing - 8.5 * 11in Sheets Put two of them into your hand and the rest on the bottom of your library in any order TCG cardstock - German Black/Blue

Some combination of these two six-drops should be in any version of this deck that runs Whir of Invention

Ragavan, Nimble Pilferer What it does: A one-mana creature that generates mana and steals cards from the opponent's library when it deals combat damage

You can preorder Tarkir: Dragonstorm products now from your local game store, online retailers like Amazon, and elsewhere Magic products are sold.

Short answer, you can't

Wizards of the Coast cannot change the standard back of paper Magic cards, with double-faced cards being a category of their own

Given the volatile nature of the format, these creatures can easily be replaced once the next set drops