Keldon Warlord [Beta Edition] Shapeshifter then repeats this process until

then repeats this process until a creature card or X cards have been put into their graveyard this way

Destroy target nonblack creature

The flashback cost is equal to its mana cost

Set: Mercadian Masques Type: Legendary Creature — Goblin Rarity: Rare Cost: {2}{R} At the beginning of your upkeep

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {3} You may choose not to untap Vedalken Shackles during your untap step

Keldon Warlord [Beta Edition] Shapeshifter then repeats this process untilSet: Beta Edition Type: Creature Human Barbarian Rarity: Uncommon Cost: {2}{R}{R} Keldon Warlord's power and toughness are each equal to the number of non Wall creatures you control.