A deck can have any number of cards named Persistent Petitioners
I did that for a while until I realized that I would effectively play each expansion once and then never go back to it because I knew the story, I knew the mystery, I had figured it all out
I was able to predict some of the mechanics that would show up on five of those 10 cards , and got relatively close with some of my other predictions
Still very powerful most of the time, and even if you dont have a land to ramp into, you usually still walk away with an extra card
Nurgle's Conscription Reverberate Sorcery (7) Blasphemous Act Blight Grenade Decree of Pain Deny Reality Let the Galaxy Burn Mandate of Abaddon Past in Flames Enchantment (5) Nurgle's Rot The Horus Heresy The Lost and the Damned The Ruinous Powers Warstorm Surge Artifact (10) Assault Suit Chromatic Lantern Commander's Sphere Drach'Nyen Sol Ring Talisman of Creativity Talisman of Dominance Talisman of Indulgence Wayfarer's Bauble Worn Powerstone Land (38) Barren Moor Command Tower Crumbling Necropolis Dismal Backwater Evolving Wilds Exotic Orchard Foreboding Ruins Forgotten Cave Molten Slagheap Path of Ancestry Sunken Hollow Swiftwater Cliffs Temple of the False God Terramorphic Expanse Island x8 Swamp x8 Mountain x8 Commanders, Theme, and Strategy The two main Commanders for The Ruinous Powers are Abaddon the Despoiler and Be'lakor, the Dark Master