This is a deck build I have just put together to test 2 possible commanders. Teysa 2.0 has been one of my favorite cards since her release, but haven't been able to figure out how to properly utilize her. As for Atheros, he is just too much fun with his recursion mechanic. I wanted to find a build that would let these 2 work well together and allow me to either find which works better as a commander, or let me swap the 2 to on the fly. Here is the current list. Thoughts and suggestions are appreciated!
1 Teysa, Envoy of Ghosts
1 Athreos, God of Passage
Creatures:35
1 Mother of Runes
1 Viscera Seer
1 Blood Artist
1 Cartel Aristocrat
1 Gatekeeper of Malakir
1 High Priest of Penance
1 Nezumi Graverobber
1 Pain Seer
1 Precinct Captain
1 Serene Master
1 Thalia, Guardian of Thraben
1 Tidehollow Sculler
1 Vampire Hexmage
1 Wall of Omens
1 Banisher Priest
1 Fiend Hunter
1 Mentor of the Meek
1 Necrotic Sliver
1 Ophiomancer
1 Sin Collector
1 Athreos, God of Passage
1 Teysa, Envoy of Ghosts
1 Vampire Nighthawk
1 Academy Rector
1 Braids, Cabal Minion
1 Falkenrath Noble
1 Slum Reaper
1 Solemn Simulacrum
1 Karmic Guide
1 Obzedat, Ghost Council
1 Ogre Slumlord
1 Reveillark
1 Pontiff of Blight
1 Sun Titan
1 Butcher of Malakir
1 Sheoldred, Whispering One
1 Expedition Map
1 Skullclamp
1 Sol Ring
1 Wayfarer's Bauble
1 Darksteel Ingot
1 Mimic Vat
1 Orzhov Signet
1 Swiftfoot Boots
Enchantments:8
1 Curse of Shallow Graves
1 Endless Whispers
1 Field of Souls
1 Grave Pact
1 Martyr's Bond
1 True Conviction
1 Cathars' Crusade
1 Animate Dead
Other Spells:10
1 Condemn
1 Killing Wave
1 Reanimate
1 Swords to Plowshares
1 Demonic Tutor
1 Diabolic Tutor
1 Wrath of God
1 Obzedat's Aid
1 Unburial Rites
1 Decree of Pain
1 Barren Moor
1 Bojuka Bog
1 Cabal Coffers
1 Command Tower
1 Evolving Wilds
1 Godless Shrine
1 Isolated Chapel
1 Orzhov Basilica
1 Orzhov Guildgate
13 Plains
12 Swamp
1 Temple of the False God
1 Terramorphic Expanse
1 Urborg, Tomb of Yawgmoth
1 Vault of the Archangel
EDH
WOrzhova's PoliticsB
UStensia's SaintW
U1000 FacesB
UIzzet's GambitR
RUBThe Rose's ThornBUR
RUGEternal HuntGUR
UWBArchitect's FoundryBWU
BBlood PactB
Duel Commander
URG [Primer] Maelstrom Wanderer [Primer] URG
Duel Commander Current Projects:
RGWMarath, Will of the WildRGW
BRXMogis, God of SlaughterBRX
RWxIoras, God of VictoryRWx
WBxAthreos, God of PassageWBx
Created By: DarkNightCavalier
EDH
WOrzhova's PoliticsB
UStensia's SaintW
U1000 FacesB
UIzzet's GambitR
RUBThe Rose's ThornBUR
RUGEternal HuntGUR
UWBArchitect's FoundryBWU
BBlood PactB
Yeah, a lot of people assumed "Duel Commander" is a fancy name for 1v1 Commander and they got pissed when I corrected them.
Duel Commander
URG [Primer] Maelstrom Wanderer [Primer] URG
Duel Commander Current Projects:
RGWMarath, Will of the WildRGW
BRXMogis, God of SlaughterBRX
RWxIoras, God of VictoryRWx
WBxAthreos, God of PassageWBx
Created By: DarkNightCavalier
EDH
WOrzhova's PoliticsB
UStensia's SaintW
U1000 FacesB
UIzzet's GambitR
RUBThe Rose's ThornBUR
RUGEternal HuntGUR
UWBArchitect's FoundryBWU
BBlood PactB