Mardu is mostly beatable, although, because of the powerful of their cards, you probably wont be able to make a deck that absolutely crushes it
This might seem like a low range but in practice Sunlance kills way more things
There are a huge number of cards that could be functionally reprinted with it: Abzan Charm , Ambition's Cost / Ancient Craving , Asylum Visitor , Baleful Force , Bloodgift Demon , Caress of Phyrexia , Champion of Dusk , Corpse Augur , Cryptbreaker , Curse of Vengeance , Damnable Pact , Dark Prophecy , Dusk Legion Zealot , Glint-Sleeve Siphoner , Graveborn Muse , Harrowing Journey , Hoarder's Greed , Kothophed , Liliana's Contract , Live Fast , Malakir Soothsayer , Metalspinner's Puzzleknot , Midnight Entourage , Mindblade Render , Minion's Murmurs , Moriok Replica , Night's Whisper , Ob Nixilis Reignited , Painful Lesson , Parting Thoughts , Phyrexian Arena , Phyrexian Gargantua , Phyrexian Rager, Promise of Power , Read the Bones , Sanguimancy , Seizan, Perverter of Truth , Sign in Blood , Skeletal Scrying , Succumb to Temptation , Toil , Vulturous Aven , and Wretched Confluence
Each Dungeon is separated into 'rooms', each with its own effects when you 'enter' them through Venturing
On top of all of this, it is graded a PSA 10
Chalice of the Void (2019) The 2019 judge promo Chalice of the Void has a unique artwork that goes great with the foiling on the card