Braids, Arisen Nightmare (Showcase Textured) [Dominaria United] Tentacle Toxic 4 (Players dealt combat

Toxic 4 (Players dealt combat damage by this creature also get four poison counters

"But the Ringwraiths themselves cannot be so easily destroyed

Discard a card: Put a study counter on Grimoire of the Dead

You may cast an artifact spell from among them this turn

Braids, Arisen Nightmare (Showcase Textured) [Dominaria United] Tentacle Toxic 4 (Players dealt combatSet: 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.