Mogis's Warhound [Journey into Nyx] Nightmare Dragon whenever a creature you control

whenever a creature you control deals combat damage to a player

Set: Throne of Eldraine Type: Sorcery Rarity: Rare Cost: {1}{B}{B} Creatures of the creature type of your choice get -3/-3 until end of turn

Renegade turned revolutionary turned rebuilder

Set: Dominaria United Type: Creature — Elf Druid Rarity: Rare Cost: {G}{G} Other Elves you control get +1/+1

Set: Phyrexia: All Will Be One Type: Creature — Phyrexian Wizard Rarity: Common Cost: {3}{U} When Meldweb Curator enters the battlefield

Mogis's Warhound [Journey into Nyx] Nightmare Dragon whenever a creature you controlSet: Journey into Nyx Type: Enchantment Creature Dog Rarity: Uncommon Cost: {1}{R} Bestow {2}{R} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.) Mogis's Warhound attacks each combat if able. Enchanted creature gets +2 +2 and attacks each combat if able.