Doesn't Make the Cut

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These are cards that I feel are very powerful, but don't seem to make the cut very often.
This is a rather subjective deck; some of the cards here are played by lots of people, but don't seem to appear much around here.
One weird thing is when I cut a card from this deck, which means the card didn't make the cut in the "Doesn't Make the Cut" deck.
 
Mana Acceleration (10): General (1): Spells (28): Sideboard (Omitted/Cut card ideas):
1 Obelisk of Bant 1 Progenitus 1 Citanul Flute 1 Pestilence Demon
1 Obelisk of Esper   1 Colfenor's Urn 1 Back from the Brink
1 Obelisk of Grixis Creatures (25): 1 Crawlspace 1 Thought Reflection
1 Obelisk of Jund 1 Etched Monstrosity 1 Door to Nothingness 1 Mindmoil
1 Obelisk of Naya 1 Drogskol Reaver 1 Druidic Satchel 1 Knowledge Vault
1 Abzan Banner 1 Lazav, Dimir Mastermind 1 Elbrus, the Binding Blade // Withengar Unbound 1 Kusari-Gama
1 Jeskai Banner 1 Lord of Extinction 1 Legacy Weapon 1 Urza's Blueprints
1 Mardu Banner 1 Maelstrom Archangel 1 Nemesis Mask 1 Assemble the Legion
1 Sultai Banner 1 Master Biomancer 1 Obelisk of Alara 1 Blazing Archon
1 Temur Banner 1 Nin, the Pain Artist 1 Seer's Sundial 1 Norn's Annex
  1 Rakdos, Lord of Riots 1 Assemble the Legion 1 Alchemist's Refuge
Lands (36): 1 Yidris, Maelstrom Wielder 1 Biomass Mutation 1 Mirrodin's Core
1 Bountiful Promenade 1 Bringer of the Black Dawn 1 Brilliant Ultimatum 1 Winding Canyons
1 Luxury Suite 1 Coffin Queen 1 Debt to the Deathless 1 River of Tears
1 Morphic Pool 1 Dark Impostor 1 Gaze of Granite 1 Ancient Amphitheater
1 Sea of Clouds 1 Dread 1 Maelstrom Nexus 1 Maelstrom Pulse
1 Spire Garden 1 Massacre Wurm 1 Obzedat's Aid 1 Evil Twin
1 Temple of Abandon 1 Bringer of the Blue Dawn 1 Sorin, Lord of Innistrad 1 Timetwister
1 Temple of Deceit 1 Ethersworn Adjudicator 1 Dark Prophecy 1 Recurring Insight
1 Temple of Epiphany 1 Lighthouse Chronologist 1 Dauthi Embrace 1 Necropotence
1 Temple of Malady 1 Tomorrow, Azami's Familiar 1 Exquisite Blood 1 Diabolic Revelation
1 Temple of Mystery 1 Vesuvan Doppelganger 1 Yawgmoth's Will 1 Ring of Three Wishes
1 Temple of Silence 1 Elderscale Wurm 1 Equilibrium 1 Gemstone Array
1 Temple of Triumph 1 Bringer of the Red Dawn 1 Foster 1 Nimbus Maze
1 Temple of Enlightenment 1 Etali, Primal Storm 1 Gutter Grime 1 Bad River
1 Temple of Malice 1 Avatar of Hope 1 Praetor's Counsel 1 Flood Plain
1 Temple of Plenty 1 Darien, King of Kjeldor 1 Reforge the Soul 1 Grasslands
1 Blackcleave Cliffs 1 Sunblast Angel 1 Worship 1 Mountain Valley
1 Copperline Gorge     1 Rocky Tar Pit
1 Darkslick Shores     1 Platinum Angel
1 Razorverge Thicket     1 Havengul Lich
1 Seachrome Coast     1 Moonveil Dragon
1 Gateway Plaza     1 Merciless Eviction
1 Rupture Spire     1 Wargate
1 Transguild Promenade      
1 City of Brass      
1 Forbidden Orchard      
1 Grand Coliseum      
2 Swamp      
2 Island      
2 Forest      
2 Mountain      
2 Plains