Arcane Signet (1P) [30th Anniversary Misc Promos] Core Set 2020 Promos there is an additional combat

there is an additional combat phase followed by an additional main phase

Set: Revised Edition Type: Enchantment — Aura Rarity: uncommon Cost: {1}{B} Enchant creature card in a graveyard When this Aura enters

Set: Core Set 2020 Promos Type: Creature — Human Rogue Rarity: rare Cost: {5}{U}{U} When this creature enters

−3: Exile target creature

Set: Secret Lair Showdown Type: Instant Rarity: rare Cost: {U} Counter target noncreature spell

Arcane Signet (1P) [30th Anniversary Misc Promos] Core Set 2020 Promos there is an additional combatSet: 30th Anniversary Misc Promos Type: Artifact Rarity: rare Cost: {2} {T}: Add one mana of any color in your commander's color identity.