Muxus, Goblin Grandee [The List] Unsanctioned there is an additional combat

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

Set: Fallout Type: Sorcery Rarity: Common Cost: {8}{R} This spell costs 1 less to cast for each creature on the battlefield

Set: Strixhaven: School of Mages Type: Legendary Planeswalker — Liliana Rarity: Mythic Cost: {4}{B}{B} Magecraft — Whenever you cast or copy an instant or sorcery spell

From the Jujutsu Kaisen anime

Muxus, Goblin Grandee [The List] Unsanctioned there is an additional combatSet: The List Type: Legendary Creature Goblin Noble Rarity: Rare Cost: {4}{R}{R} When Muxus, Goblin Grandee enters, reveal the top six cards of your library. Put all Goblin creature cards with mana value 5 or less from among them onto the battlefield and the rest on the bottom of your library in a random order. Whenever Muxus attacks, it gets +1 +1 until end of turn for each other Goblin you control.