Warhammer 40,000 Commander Ghyrson Starn, Kelermorph 19,834decks Marneus Calgar 16,732decks Be'lakor, the Dark Master 15,161decks Magus Lucea Kane 14,728decks Imotekh the Stormlord 7,939decks Abaddon the Despoiler 6,484decks Magnus the Red 5,872decks The Swarmlord 2,988decks Inquisitor Greyfax 2,556decks Trazyn the Infinite 2,397decks Commissar Severina Raine 2,289decks Khrn the Betrayer 1,987decks Celestine, the Living Saint 1,949decks Mortarion, Daemon Primarch 1,774decks Szarekh, the Silent King 1,589decks Belisarius Cawl 1,333decks Inquisitor Eisenhorn 1,173decks Anrakyr the Traveller 1,002decks Lucius the Eternal 972decks Deathleaper, Terror Weapon 828decks The Red Terror 616decks Neyam Shai Murad 615decks Illuminor Szeras 579decks Old One Eye 366decks Commanders (Reprints) Cards Sceptre of Eternal Glory 0.7%inclusion 66.6K decks 9.43M decks Bloodthirster 1.3%inclusion 60.3K decks 4.70M decks Cryptothrall 0.6%inclusion 55.6K decks 9.43M decks Biophagus 1.2%inclusion 53.3K decks 4.35M decks Celestine, the Living Saint 1.2%inclusion 52.3K decks 4.38M decks Reaver Titan 0.5%inclusion 51.1K decks 9.43M decks Exalted Flamer of Tzeentch 2.3%inclusion 50.4K decks 2.23M decks Keeper of Secrets 1.0%inclusion 48.5K decks 4.70M decks Canoptek Spyder 0.5%inclusion 47.8K decks 9.43M decks Out of the Tombs 1.0%inclusion 46.8K decks 4.79M decks Blood for the Blood God

Clone only copies the "Garruk Relentless" side of the card
Many white cards provide value in different ways, like God-Eternal Oketra or Teshar, Ancestors Apostles cast triggers, though we wont be talking about them here today as they dont result in more physical cards being drawn
As a value engine this is absolutely really strong, probably a cEDH archetype in the making
Attach them to Reshiram- EX , with a combination or Double Colorless Energy or none, so it can hit for 150 big ones
However, if Merciless Repurposing is anything to go by, the mechanic is destined for Limited events and not much else