Marchesa

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Creatures that enter the battlefield with +1/+1 counters
Sac outlets
 
Mana Acceleration (8): General (1): Spells (16): Sideboard (Omitted/Cut card ideas):
1 Astral Cornucopia 1 Marchesa, the Black Rose 1 Altar of Dementia 1 Inexorable Tide
1 Caged Sun   1 Ashnod's Altar 1 Contagion Engine
1 Coalition Relic Creatures (39): 1 Carnage Altar 1 Repay in Kind
1 Everflowing Chalice 1 Mindless Automaton 1 Nevinyrral's Disk 1 Necropotence
1 Gem of Becoming 1 Pentavus 1 Orochi Hatchery 1 Helm of Possession
1 Gilded Lotus 1 Tetravus 1 Phyrexian Altar 1 Grenzo, Dungeon Warden
1 Thran Dynamo 1 Thopter Squadron 1 Spawning Pit 1 Ogre Slumlord
1 Worn Powerstone 1 Triskelavus 1 Attrition 1 Butcher of Malakir
  1 Workhorse 1 Black Market 1 Triskelion
Lands (36): 1 Dack's Duplicate 1 Grave Betrayal 1 Dark Prophecy
1 Underground Sea 1 Deathbringer Thoctar 1 Greed 1 Lu Xun, Scholar General
1 Badlands 1 Exava, Rakdos Blood Witch 1 Infernal Tribute 1 Homarid Spawning Bed
1 Volcanic Island 1 Grimgrin, Corpse-Born 1 Retribution of the Ancients 1 Garza Zol, Plague Queen
1 Watery Grave 1 Olivia Voldaren 1 Unspeakable Symbol 1 Niv-Mizzet, Dracogenius
1 Blood Crypt 1 Oona, Queen of the Fae 1 Mind Unbound 1 Consecrated Sphinx
1 Steam Vents 1 Abhorrent Overlord 1 Goblin Bombardment 1 Jin-Gitaxias, Core Augur
1 Underground River 1 Champion of Stray Souls   1 Magus of the Future
1 Sulfurous Springs 1 Erebos, God of the Dead   1 Sphinx of Uthuun
1 Shivan Reef 1 Fell Shepherd   1 Tomorrow, Azami's Familiar
1 Polluted Delta 1 Flesh Carver   1 Windreader Sphinx
1 Bloodstained Mire 1 Geralf's Messenger   1 Dire Undercurrents
1 Scalding Tarn 1 Ghoulcaller Gisa   1 Bident of Thassa
1 Drowned Catacomb 1 Hell's Caretaker   1 Coastal Piracy
1 Dragonskull Summit 1 Kheru Bloodsucker   1 Thassa, God of the Sea
1 Sulfur Falls 1 Kuro, Pitlord    
1 Dimir Aqueduct 1 Phyrexian Plaguelord    
1 Rakdos Carnarium 1 Swarm of Bloodflies    
1 Izzet Boilerworks 1 Undercity Informer    
1 Sunken Ruins 1 Jalira, Master Polymorphist    
1 Graven Cairns 1 Myojin of Seeing Winds    
1 Cascade Bluffs 1 Novijen Sages    
1 Bad River 1 Sapphire Drake    
1 Rocky Tar Pit 1 Sphinx of Magosi    
1 Darkwater Catacombs 1 Thrummingbird    
1 Shadowblood Ridge 1 Viral Drake    
1 Ancient Tomb 1 Chancellor of the Forge    
1 City of Brass 1 Flayer of the Hatebound    
1 Command Tower 1 Hamletback Goliath    
1 Crumbling Necropolis 1 Molten Primordial    
1 Grand Coliseum 1 Purphoros, God of the Forge    
1 Mana Confluence 1 Stalking Vengeance    
1 Opal Palace 1 Treasonous Ogre    
1 Reflecting Pool      
1 Spinerock Knoll      
1 Sol Ring      
1 Mana Crypt