Wall of Stolen Identity [Commander 2019] War of the Spark Ob Nixilis of the Black

Ob Nixilis of the Black Oath can be your commander

Set: International Collectors' Edition Type: Enchantment Rarity: Rare Cost: {1}{B} Black creatures get +1/+1

as is Chaos Orb

Remove a +1/+1 counter from Walking Ballista: It deals 1 damage to any target

Set: Alpha Edition Type: Artifact Rarity: Uncommon Cost: {1} Whenever a player casts a white spell

Wall of Stolen Identity [Commander 2019] War of the Spark Ob Nixilis of the BlackSet: Commander 2019 Type: Creature Shapeshifter Wall Rarity: Rare Cost: {3}{U} You may have Wall of Stolen Identity enter the battlefield as a copy of any creature on the battlefield, except it's a Wall in addition to its other types and has defender. When you do, tap the copied creature and it doesn't untap during its controller's untap step for as long as you control Wall of Stolen Identity.