Second I want to say that the custom card is an excellent design
Blood Rites Commander (1) Clavileno, First of the Blessed Creature (35) Indulgent Aristocrat Master of Dark Rites Viscera Seer Bartolome del Presidio Blood Artist Bloodghast Charismatic Conqueror Cordial Vampire Cruel Celebrant Dusk Legion Sergeant Dusk Legion Zealot Legion Lieutenant Martyr of Dusk Oathsworn Vampire Drana, Liberator of Malakir Elenda's Hierophant Mavren Fein, Dusk Apostle Nighthawk Scavanger Welcoming Vampire Yahenni, Undying Partisan Bloodtracker Elenda, the Dusk Rose Falkenrath Noble Redemption Choir Sanctum Seeker Twilight Prophet Bloodline Necromancer Carmen, Cruel Skymarcher Champion of Dusk Vona, Butcher of Magan Crossway Troublemakers Patron of the Vein Timothar, Baron of Bats Butcher of Malakir Order of Sacred Dusk Instant (4) Swords to Plowshares Village Rites Return to Dust Utter End Sorcery (5) Damn Pact of the Serpent New Blood Olivia's Wrath Austere Command Enchantment (6) March of the Canonized Promise of Aclazotz Etchings of the Chosen Radiant Destiny Kindred Boon Exquisite Blood Planeswalker (1) Artifact (11) Blade of the Bloodchief Sol Ring Wayfarer's Bauble Arcane Signet Mind Stone Orzhov Signet Swiftfoot Boots Talisman of Hierarchy Commander's Sphere Glass-Cast Heart Heirloom Blade Land (37) Bojuka Bog Command Tower Isolated Chapel Myriad Landscape Orzhov Basilica Path of Ancestry Plains x8 Rogue's Passage Secluded Courtyard Shineshadow Snarl Swamp x13 Tainted Field Temple of Silence Temple of the False God Unclaimed Territory Vault of the Archangel Voldaren Estate Windbrisk Heights Commander, Theme, and Strategy Ah vampires, the creature type that keeps Edgar Markov in the $100 range
For three mana, you get to double up on Landfall triggers, at the very least, which is obscenely powerful
All not bad rates at all, but the problem is it's a decent amount of setup for a payoff that realistically might not get you there
