This effect doesn't remove Blue Ward
Set: Morningtide Type: Creature — Treefolk Warrior Rarity: Rare Cost: {3}{G} Trample
Set: Sun & Moon: Shining Legends Type: Grass Rarity: Common Retreat cost: Colorless
Set: XY: Base Set Type: Fighting Rarity: Common Retreat cost: Colorless
Set: Ice Age Type: Creature — Human Rarity: Rare Cost: {4}{R}{R}{R} First strike
Braids, Arisen Nightmare (Showcase) [Dominaria United] ARC156 This effect doesn't remove BlueSet: Dominaria United Type: Legendary Creature Nightmare Rarity: Rare Cost: {1}{B}{B} At the beginning of your end step, you may sacrifice an artifact, creature, enchantment, land, or planeswalker. If you do, each opponent may sacrifice a permanent that shares a card type with it. For each opponent who doesn't, that player loses 2 life and you draw a card.