Temple Altisaur
Adding a "partner with" pair into every deck let us build some really cool partner combinations that totally give you the feel of two characters who bond up and fight together
This enables powerful recursion, reanimation, and cost reduction mechanics
First of all, theres a slot that will normally be a common, but 1-in-8 boosters will replace this common with a card from The List, which can be of any rarity
YES 006 Version 2 Fiery Doom Strategy Card Version 2 Japanese Portal boosters 1997-
Along the Beast Whisperer line of thinking, you have to include Vanquisher's Banner, as well as Zendikar Resurgent and/or The Great Henge for both the ramp and draw, and probably include Guardian Project as well, and maybe Soul of the Harvest