In a deck with Entomb style effects for Gisela and creature tutors for Bruna, it may not be too far-fetched to combine them, but its still a lot of hoops to jump through
The combination of abilities is very solid since they have removal, token making, and creature buffing in the arsenal, allowing you to stabilize a board and win from there
For now, let's look at what we have left in this set
Arthur Wizards Apprentice | Enchanted Rise of the Floodborn features many characters from the lesser known Sword and Shield film

Decklist: Niv-Mizzet, Parun in EDH Niv-Mizzet, Parun | Illustration by Svetlin Velinov Commander (1) Planeswalker (1) Creatures (18) Archmage Emeritus Baral, Chief of Compliance Dualcaster Mage Goblin Electromancer Guttersnipe Harmonic Prodigy Laboratory Maniac Niv-Mizzet, the Firemind Niv-Mizzet, Visionary Prismari, the Inspiration Snapcaster Mage Spellseeker Stormcatch Mentor Storm-Kiln Artist Talrand, Sky Summoner Tandem Lookout The Locust God Vivi Ornitier Instants (18) Brainstorm Counterspell Cyclonic Rift Deflecting Swat Fierce Guardianship Flashback Force of Negation Frantic Search Izzet Charm Mana Drain Mana Sculpt Mystical Tutor Narset's Reversal Negate Prismari Charm Prismari Command Red Elemental Blast Swan Song Sorceries (7) Expropriate Jeska's Will Karn's Temporal Sundering Ponder Time Stretch Vandalblast Windfall Enchantments (13) Curiosity Curse of Opulence Fiery Emancipation Leyline of Anticipation Mystic Remora Ominous Seas Omniscience Ophidian Eye Propaganda Rhystic Study Shark Typhoon Teferi's Ageless Insight Thousand-Year Storm Artifacts (13) Arcane Signet Fire Diamond Folio of Fancies Gilded Lotus Izzet Locket Izzet Signet Lightning Greaves Primal Amulet Resonating Lute Sol Ring Spellbook The Magic Mirror Thought Vessel Lands (29) Command Tower Desolate Lighthouse Fiery Islet Frostboil Snarl Island x9 Izzet Boilerworks Mountain x8 Reliquary Tower Silverbluff Bridge Steam Vents Sulfur Falls Swiftwater Cliffs Temple of Epiphany Training Center The decklist I have for you today is a Niv-Mizzet, Parun build that loves to draw cards

So long as you're playing with a bunch of cards with good enter-the-battlefield triggers, like Skyclave Apparition, Agent of Treachery, and Deadeye Navigator, you can rinse and repeat until you've taken over the game