Demonic Attorney (Alpha, Beta, Unlimited, Revised) One of the most fun ante cards in existence was Demonic Attorney
It will likely have a lot of non-creature spells with a mana cost of three or more and some ways to deal direct damage to enemy players

Abyssal Nightstalker Animus of Night's Reach Arthur, Marigold Knight Aryel, Knight of Windgrace Ashiok, Nightmare Muse Ashiok, Nightmare Weaver Attended Knight Azorius Knight-Arbiter Baba Lysaga, Night Witch Balan, Wandering Knight Benalish Knight Besotted Knight Besotted Knight Black Knight Blanket of Night Blood Knight Blood-Cursed Knight Bloodsworn Knight Braids, Arisen Nightmare Breathless Knight Brisela, Voice of Nightmares Brutal Nightstalker Bump in the Night Cadaverous Knight Call of the Nightwing Capashen Knight Cavalier of Night Cecil, Dark Knight Celes, Rune Knight Chainer, Nightmare Adept Charging Strifeknight Child of Night Chime of Night Chocobo Knights Chthonian Nightmare Coalition Skyknight Collective Nightmare Corpse Knight Craven Knight Crusading Knight Cunning Nightbonder Curse of the Nightly Hunt Dark Knight's Greatsword Deathless Knight Diamond Knight Dragonsoul Knight Dread of Night Elspeth's Nightmare Elspeth, Knight-Errant Ethercaste Knight Evernight Shade Every Dream a Nightmare Exclusive Nightclub Femeref Knight Fireborn Knight Foulmire Knight Foulmire Knight Galina's Knight Gallant Fowlknight Garland, Knight of Cornelia Ghouls' Night Out Gisela, Blade of Goldnight Goggles of Night Goldnight Castigator Goldnight Commander Goldnight Redeemer Gonti, Night Minister Grey Knight Paragon Grotag Night-Runner Gurmag Nightwatch Harbinger of Night Haunter of Nightveil

I know that talking about lands and fetching them may not be your favorite topic of all time, but we have to have a good foundation of mana to play any deck
Vito, Thorn of the Dusk Rose and Sanguine Bond punish a single opponent for your constant life gain