You can focus on Ad Nauseam if you want, but you can also build a less single-minded deck by going demon-focused
Whenever you cast an instant or sorcery spell from your graveyard, copy that spell
Aberrant Mind Sorcerer Abomination of Llanowar Accomplished Alchemist Advocate of the Beast Aether Herder Aftermath Analyst Ajani's Comrade Alisaie Leveilleur Allosaurus Rider Allosaurus Shepherd Alpha Guard Alphinaud Leveilleur Ambush Commander Aragorn and Arwen, Wed Arbor Elf Arcane Investigator Architect of the Untamed Argothian Elder Armorcraft Judge Armored Wolf-Rider Arwen Undmiel Arwen, Mortal Queen Arwen, Weaver of Hope Astarion, the Decadent Atomwheel Acrobats Attended Socialite Aurora Champion Ayara, First of Locthwain Ayara, Furnace Queen Ayara, Widow of the Realm Baeloth Barrityl, Entertainer Beast Whisperer Beast-Kin Ranger Beastcaller Savant Behemoth's Herald Belbe, Corrupted Observer Bennie Bracks, Zoologist Birchlore Rangers Blaring Recruiter Blightsoil Druid Bloodbraid Challenger Bloodbraid Elf Bloodline Shaman Bloom Tender Borderland Explorer Boreal Druid Boreal Outrider Boss's Chauffeur Bramblewood Paragon Branchblight Stalker Brazen Upstart Briarblade Adept Brightwood Tracker Caller of the Claw Caller of the Untamed Canopy Tactician Carapace Forger Cautious Survivor Celeborn the Wise Celebrity Fencer Centaur's Herald Champions of the Perfect Chance-Met Elves Circle of Dreams Druid Circle of the Moon Druid Citanul Stalwart Civic Wayfinder Cloakwood Swarmkeeper Coiling Oracle Compleated Huntmaster Conclave Guildmage Copperhorn Scout
Its also versatile thanks to having Flash, so you can bring it in as a blocker at instant speed and then swing for bonus cards next turn
