So, this is a Naturalize on a stick that can block, attack, add to your Wellwisher and Timberwatch Elf count and more, all for just one more mana than a 2/1 or Naturalize would cost
Most of the strongest Voltron cards are colorless Equipment, giving you free rein on the colors you can play
This rarely reprinted nonbasic is a powerful land destruction tool, and make sure you pack your Crucible of Worlds and Azusa, Lost but Seeking if you're wanting to truly lock down any foes' plans
Creature - Kavu Color tag templates(None) Rith, the Awakener Flying Whenever Rith deals combat damage to a player, you may pay
See, Dauthi Voidwalker
(It can't be blocked as long as defending player controls a nonbasic land.) Equip Artifact - Equipment Color tag templates(None) Wayfarer's Bauble , , Sacrifice this artifact: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle