Each Player Takes X

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Click here for my EDH Commander decks
 
• Spells that deal X damage to each player
• Prevent damage to yourself
• Double life loss (Wound Reflection)
• Tons of mana ramp: There's a lot of basic land search in here, so I kept the mana base as basic lands. A you really need is a little green mana to get started.
 
Mana Acceleration (19): General (2): Spells (27): Sideboard (Omitted/Cut card ideas):
1 Chromatic Orrery 1 Vial Smasher the Fierce 1 Forethought Amulet 1 Death Cloud
1 Unstable Obelisk 1 Sidar Kondo of Jamuraa 1 General's Regalia 1 Axis of Mortality
1 Mirari's Wake   1 Pentagram of the Ages 1 Knollspine Dragon
1 Boundless Realms Creatures (16): 1 Pariah's Shield 1 Vengeful Archon
1 Circuitous Route 1 Platinum Angel 1 Cut // Ribbons 1 Protector of the Crown
1 Cultivate 1 Platinum Emperion 1 Debt to the Deathless 1 Avacyn, Guardian Angel
1 Explosive Vegetation 1 Gisela, Blade of Goldnight 1 Exquisite Blood 1 Tainted Sigil
1 Grow from the Ashes 1 Tamanoa 1 Exsanguinate 1 Havoc Festival
1 Kodama's Reach 1 Archfiend of Despair 1 Fraying Omnipotence 1 Glacial Chasm
1 Mana Reflection 1 Elderscale Wurm 1 Repay in Kind 1 Pariah
1 Migration Path 1 Ali from Cairo 1 Torment of Hailfire 1 Haazda Shield Mate
1 Nissa's Expedition 1 Bloodfire Colossus 1 Wound Reflection 1 Endure
1 Nissa's Renewal 1 Fortune Thief 1 Borrowing the East Wind 1 Angel's Grace
1 Nyxbloom Ancient 1 Heartless Hidetsugu 1 Hurricane 1 Teferi's Protection
1 Rampant Growth 1 Jaya Ballard, Task Mage 1 Squall Line 1 Stunning Reversal
1 Sakura-Tribe Elder 1 Archon of Coronation 1 Earthquake 1 Circle of Despair
1 Vastwood Surge 1 Exquisite Archangel 1 Fault Line 1 Worship
1 Verdant Confluence 1 Glarecaster 1 Fire Tempest 1 Bond of Agony
1 Zendikar Resurgent 1 Palisade Giant 1 Inferno 1 Safe Passage
  1 Purity 1 Molten Disaster 1 Selfless Squire
Lands (36):   1 Rolling Earthquake 1 Cho-Arrim Alchemist
1 Indatha Triome   1 Blessed Sanctuary 1 Intervention Pact
1 Savai Triome   1 Invulnerability 1 Reverse Damage
1 Bala Ged Recovery // Bala Ged Sanctuary   1 Nine Lives 1 Saving Grace
1 Command Tower   1 Personal Sanctuary 1 Solitary Confinement
1 Ondu Inversion // Ondu Skyruins   1 Protective Sphere 1 Arcbond
1 Path of Ancestry   1 The Wanderer 1 Coalhauler Swine
1 Shatterskull Smashing // Shatterskull, the Hammer Pass     1 Magmasaur
1 Skyclave Cleric // Skyclave Basilica      
1 Zof Consumption // Zof Bloodbog      
5 Swamp      
11 Forest      
5 Mountain      
5 Plains      
1 Sol Ring