Core synergy pieces Lifegain payoffs: Life drain: Lifegain engines: Commanders 41.7% (15) 33.3% (12) 13.9% (5) 11.1% (4) How to beat it Static life-gain hate is brutal: Tainted Remedy and Rain of Gore invert every gain trigger into damage
(WIP) 5-8-18 Articles Elaborating further on what I teased in this post
We made a lot of new mechanics, like offspring, valiant, manifest dread, eerie, impending, omen, exhaust, harmonize, mobilize, renew, flurry, endure, behold, Saga creatures, and job select

1 Adarkar Wastes 1 Alrund's Epiphany 1 Approach of the Second Sun 1 Arcane Signet 1 Archaeomancer's Map 1 Azorius Signet 1 Beacon of Tomorrows 1 Behold the Multiverse 1 Blatant Thievery 1 Bond of Insight 1 Brain in a Jar 1 Brainstorm 1 Castle Vantress 1 Cavalier of Gales 1 Chant of Vitu-Ghazi 1 Clone Legion 1 Command Beacon 1 Command Tower 1 Commit // Memory 1 Counterspell 1 Crystal Ball 1 Deploy to the Front 1 Deserted Beach 1 Diviner's Portent 1 Elminster 1 Emeria's Call // Emeria, Shattered Skyclave 1 Enlightened Tutor 1 Evolving Wilds 1 Expropriate 1 Fated Retribution 1 Favorable Winds 1 Foresee 1 Gilded Lotus 1 Glacial Fortress 1 Guiding Bolt 1 Hallowed Fountain 1 Hengegate Pathway // Mistgate Pathway 1 Hour of Reckoning 1 Invincible Hymn 12 Island 1 Junk Winder 1 Karn's Bastion 1 Keeper of the Accord 1 Land Tax 1 Mentor's Guidance 1 Mnemonic Deluge 1 Mystic Gate 1 Mystic Speculation 1 Mystical Tutor 1 Nexus of Fate 1 Nezahal, Primal Tide 1 Nimbus Maze 1 No Escape 1 Oath of Teferi 1 Omen of the Sea 1 Ondu Inversion // Ondu Skyruins 7 Plains 1 Prairie Stream 1 Psychic Impetus 1 Reliquary Tower 1 Rumor Gatherer 1 Sapphire Dragon // Psionic Pulse 1 Scroll Rack 1 Sea of Clouds 1 Sensei's Divining Top 1 Skycloud Expanse 1 Smothering Tithe 1 Sol Ring 1 Solemn Simulacrum 1 Storm Herd 1 Talisman of Progress 1 Tamiyo's Epiphany 1 Temporal Trespass 1 The Council of Four 1 The Magic Mirror 1 Thought Vessel 1 Thran Dynamo 1 Time Stretch 1 Treasure Cruise 1 Vanquish the Horde 1 Voyage's End 1 Wayfarer's Bauble 1 Zhalfirin Void Tada

Because cards are mainly sold in randomized booster packs, these games encourage players to trade with one another in order to create an optimized deck
Iridescent Tiger's ability triggers if you cast it from any zone