Gating

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- This is an experimental deck (work in progress) with lots of creatures with "when this ETBs, bounce another creature". I was originally focused on creatures with "Gating" (return my own creature to hand), to abuse ETB triggers like Aura Shards. But I soon realized that the "ETB bounce anyone's creature" cards (like Man-o'-war) weren't much more expensive (mana-wise). So I've been switching to those, to give myself the option of what to bounce.
- When this deck gets going it's amusing, but it's having trouble. It needs more "whenever a creature enters the battlefield..." triggers for it to work. Panharmonicon and/or Aluren are insane if I can get them out, of course.
- Reduce cost of creatures/spells
- Tap a creature you control: costs
- Flash (Vedalken Orrery, Winding Canyons, Leyline of Anticipation), so can respond better
 
Mana Acceleration (17): General (1): Spells (22): Sideboard (Omitted/Cut card ideas):
1 Cloud Key 1 Phelddagrif 1 Altar of the Brood 1 Fleetfoot Panther
1 Planar Gate   1 Bontu's Monument 1 Jeskai Barricade
1 Semblance Anvil Creatures (27): 1 Genesis Chamber 1 Chivalrous Chevalier
1 Solemn Simulacrum 1 Azorius AEthermage 1 Hair-Strung Koto 1 Hunting Grounds
1 Stone Calendar 1 Deputy of Acquittals 1 Lifecrafter's Bestiary 1 Trostani, Selesnya's Voice
1 Tangleroot 1 Sawtooth Loon 1 Noetic Scales 1 Centaur Omenreader
1 The Immortal Sun 1 AEther Adept 1 Oketra's Monument 1 Grand Arbiter Augustin IV
1 Karametra, God of Harvests 1 AEthersnipe 1 Panharmonicon 1 Seal of the Guildpact
1 Earthcraft 1 Angler Drake 1 Vedalken Orrery 1 Yavimaya Granger
1 Farhaven Elf 1 Arctic Merfolk 1 Aura Shards 1 Ancestral Statue
1 Ondu Giant 1 Aven Surveyor 1 Glare of Subdual 1 Silver Drake
1 Quirion Trailblazer 1 Hoverguard Sweepers 1 Equilibrium 1 Steel Leaf Paladin
1 Silverglade Elemental 1 Kapsho Kitefins 1 Leyline of Anticipation 1 Dream Stalker
1 Wild Wanderer 1 Kiri-Onna 1 Opposition 1 Faerie Impostor
1 Wood Elves 1 Man-o'-War 1 Sunken Hope 1 Keymaster Rogue
1 Yavimaya Dryad 1 Riftwing Cloudskate 1 Aluren 1 Quickling
1 Zendikar Resurgent 1 Separatist Voidmage 1 Dual Nature 1 Shrieking Drake
  1 Sun Ce, Young Conquerer 1 Primeval Bounty 1 Storm Sculptor
Lands (33): 1 Teferi, Mage of Zhalfir 1 Wild Pair 1 Ambush Krotiq
1 Tundra 1 Venser, Shaper Savant 1 Angelic Chorus 1 Invasive Species
1 Savannah 1 Voidwielder 1 Cathars' Crusade 1 Emancipation Angel
1 Tropical Island 1 Beast Whisperer 1 Spirit Bonds 1 Kor Skyfisher
1 Hallowed Fountain 1 Primordial Sage   1 Double Header
1 Temple Garden 1 Soul of the Harvest   1 Deprive
1 Breeding Pool 1 Verdant Sun's Avatar   1 Disappearing Act
1 Canopy Vista 1 Angel of Serenity   1 Familiar's Ruse
1 Scattered Groves 1 Aviary Mechanic   1 Vapor Snare
1 Fortified Village 1 Stonecloaker   1 Denizen of the Deep
1 Alchemist's Refuge 1 Stormfront Riders   1 Dust Elemental
1 Arcane Lighthouse 1 Whitemane Lion   1 Voidmage Husher
1 Winding Canyons     1 Timid Drake
7 Island     1 Kederekt Leviathan
8 Forest     1 Aethertide Whale
5 Plains     1 Species Gorger
1 Sol Ring     1 Cache Raiders