Sarkhan the Masterless (Japanese Alternate Art) [War of the Spark Promos] Homelands Scholars say that arbiters exist

Scholars say that arbiters exist on every world

Set: Urza's Destiny Type: Enchantment Rarity: Rare Cost: {2}{W}{W} Each other non-Aura enchantment is a creature in addition to its other types and has base power and base toughness each equal to its mana value

Set: Ixalan Prerelease Promos Type: Artifact Rarity: Rare Cost: {5} As Vanquisher's Banner enters the battlefield

Great Wall of China

Set: Alpha Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one color word with another

Sarkhan the Masterless (Japanese Alternate Art) [War of the Spark Promos] Homelands Scholars say that arbiters existSet: War of the Spark Promos Type: Legendary Planeswalker Sarkhan Rarity: Rare Cost: {3}{R}{R} Whenever a creature attacks you or a planeswalker you control, each Dragon you control deals 1 damage to that creature. +1: Until end of turn, each planeswalker you control becomes a 4 4 red Dragon creature and gains flying. 3: Create a 4 4 red Dragon creature token with flying.