Flashback gives you more to get on with late game but by proxy will afford you the opportunity to have a stronger early game
You don't need an even split five colour deck with over half you cards gold
Flying Car 0.0%inclusion -0.9lift 1 decks 4.64K decks Enchantments Shark Typhoon 13%inclusion 1.1lift 1.17K decks 9.32K decks Wilderness Reclamation 12%inclusion 0.4lift 1.14K decks 9.32K decks Garruk's Uprising 11%inclusion -0.1lift 1.01K decks 9.32K decks Leyline of the Guildpact 11%inclusion -0.0lift 147 decks 1.36K decks Whirlwind of Thought 11%inclusion 0.5lift 178 decks 1.67K decks Felidar Retreat 10%inclusion 0.5lift 217 decks 2.11K decks Hardened Scales 9.4%inclusion -0.1lift 873 decks 9.32K decks Additive Evolution 9.3%inclusion 1.2lift 862 decks 9.32K decks Annie Joins Up 8.4%inclusion -0.0lift 140 decks 1.67K decks Spelunking 8.1%inclusion 0.4lift 756 decks 9.32K decks Metallurgic Summonings 8.1%inclusion 1.3lift 750 decks 9.32K decks Exploration 8.0%inclusion 0.1lift 742 decks 9.32K decks Dragonback Assault 7.5%inclusion 0.5lift 198 decks 2.63K decks Temur Ascendancy 7.3%inclusion -0.3lift 193 decks 2.63K decks Thousand-Year Storm 7.2%inclusion 0.6lift 189 decks 2.63K decks Omniscience 6.9%inclusion 0.4lift 640 decks 9.32K decks Doubling Season 6.5%inclusion -0.1lift 610 decks 9.32K decks Mirari's Wake 6.3%inclusion 0.0lift 132 decks 2.11K decks Propaganda 6.2%inclusion -0.0lift 579 decks 9.32K decks Up the Beanstalk 6.2%inclusion 0.3lift 576 decks 9.32K decks Widespread Thieving 6.2%inclusion 0.7lift 84 decks 1.36K decks Simic Ascendancy 5.9%inclusion 0.0lift 552 decks 9.32K decks Wild Growth 5.5%inclusion -0.1lift 517 decks 9.32K decks Rhythm of the Wild 5.5%inclusion -0.4lift 144 decks 2.63K decks Branching Evolution 5.2%inclusion -0.2lift 482 decks 9.32K decks Terrasymbiosis 4.8%inclusion -0.0lift 448 decks 9.32K decks Retreat to Coralhelm 4.7%inclusion 0.3lift 436 decks 9.32K decks Mystic Remora 4.3%inclusion -0.5lift 404 decks 9.32K decks Wizard Class 4.3%inclusion 0.1lift 397 decks 9.32K decks Burgeoning 4.2%inclusion 0.1lift 395 decks 9.32K decks Unbound Flourishing 4.2%inclusion 0.1lift 393 decks 9.32K decks Utopia Sprawl 4.1%inclusion -0.1lift 383 decks 9.32K decks Lattice Library 4.1%inclusion 0.4lift 381 decks 9.32K decks Sylvan Library 4.0%inclusion -0.2lift 370 decks 9.32K decks Sapling Nursery 3.9%inclusion 0.7lift 367 decks 9.32K decks Druid Class 3.9%inclusion 0.4lift 364 decks 9.32K decks Swarm Intelligence 3.5%inclusion 1.0lift 329 decks 9.32K decks Case of the Locked Hothouse 3.5%inclusion 0.3lift 325 decks 9.32K decks Zendikar's Roil 3.3%inclusion 0.4lift 306 decks 9.32K decks Primeval Bounty 3.1%inclusion 0.6lift 292 decks 9.32K decks Prismatic Undercurrents 3.1%inclusion 0.5lift 292 decks 9.32K decks Paradox Zone 3.0%inclusion 0.7lift 279 decks 9.32K decks Mana Reflection 3.0%inclusion 0.2lift 279 decks 9.32K decks Glacierwood Siege 3.0%inclusion 0.3lift 278 decks 9.32K decks Teferi's Ageless Insight 2.9%inclusion 0.2lift 267 decks 9.32K decks Leyline of Anticipation 2.9%inclusion -0.0lift 267 decks 9.32K decks Ride the Shoopuf 2.9%inclusion 0.5lift 267 decks 9.32K decks Rites of Flourishing 2.7%inclusion 0.0lift 251 decks 9.32K decks Inexorable Tide 2.7%inclusion -0.2lift 248 decks 9.32K decks Innkeeper's Talent 2.7%inclusion -0.2lift 248 decks 9.32K decks Utility Lands Reliquary Tower 38%inclusion 0.1lift 3.51K decks 9.32K decks Alchemist's Refuge 15%inclusion 0.3lift 1.36K decks 9.32K decks Mystic Sanctuary 15%inclusion 0.6lift 1.35K decks 9.32K decks Temple of the False God 14%inclusion 0.2lift 1.29K decks 9.32K decks Rogue's Passage 13%inclusion -0.0lift 1.20K decks 9.32K decks Yavimaya, Cradle of Growth 12%inclusion -0.1lift 1.11K decks 9.32K decks Boseiju, Who Endures 10%inclusion -0.3lift 946 decks 9.32K decks Mistrise Village 10%inclusion 0.1lift 901 decks 9.32K decks Bojuka Bog 9.4%inclusion -0.1lift 199 decks 2.11K decks The Black Gate 9.1%inclusion 0.7lift 193 decks 2.11K decks Midgar, City of Mako 7.8%inclusion 0.8lift 164 decks 2.11K decks Ishgard, the Holy See 7.6%inclusion 0.6lift 161 decks 2.11K decks Otawara, Soaring City 7.6%inclusion -0.3lift 707 decks 9.32K decks Lindblum, Industrial Regency 7.4%inclusion 0.6lift 194 decks 2.63K decks Mosswort Bridge 7.1%inclusion 0.0lift 666 decks 9.32K decks Baldur's Gate 6.4%inclusion 0.5lift 596 decks 9.32K decks Kessig Wolf Run 6.4%inclusion 0.1lift 168 decks 2.63K decks Thespian's Stage 6.3%inclusion 0.3lift 586 decks 9.32K decks Maze's End 6.2%inclusion 0.5lift 581 decks 9.32K decks Basilisk Gate 5.8%inclusion 0.5lift 541 decks 9.32K decks Vesuva 5.1%inclusion 0.4lift 476 decks 9.32K decks Great Hall of the Biblioplex 4.6%inclusion 1.1lift 430 decks 9.32K decks Oran-Rief, the Vastwood 4.4%inclusion 0.2lift 411 decks 9.32K decks Skycoach Waypoint 4.0%inclusion 1.1lift 376 decks 9.32K decks Balamb Garden, SeeD Academy 4.0%inclusion 0.5lift 373 decks 9.32K decks Thran Portal 3.9%inclusion 0.6lift 361 decks 9.32K decks Dark Depths 3.7%inclusion 0.3lift 346 decks 9.32K decks Lumbering Falls 3.6%inclusion 0.4lift 333 decks 9.32K decks Zanarkand, Ancient Metropolis 3.5%inclusion 0.4lift 322 decks 9.32K decks Karn's Bastion 3.4%inclusion -0.3lift 316 decks 9.32K decks Scavenger Grounds 3.0%inclusion 0.2lift 276 decks 9.32K decks Shifting Woodland 3.0%inclusion -0.3lift 275 decks 9.32K decks Ba Sing Se 2.8%inclusion 0.1lift 261 decks 9.32K decks Jidoor, Aristocratic Capital 2.8%inclusion 0.4lift 258 decks 9.32K decks Evendo, Waking Haven 2.7%inclusion -0.0lift 252 decks 9.32K decks Command Beacon 2.6%inclusion -0.2lift 244 decks 9.32K decks Adventurer's Inn 2.6%inclusion 0.5lift 241 decks 9.32K decks Nesting Grounds 2.6%inclusion -0.3lift 239 decks 9.32K decks Restless Vinestalk 2.5%inclusion 0.4lift 235 decks 9.32K decks Castle Vantress 2.5%inclusion 0.3lift 233 decks 9.32K decks Urza's Tower 2.4%inclusion 0.2lift 227 decks 9.32K decks Urza's Mine 2.3%inclusion 0.2lift 218 decks 9.32K decks Urza's Power Plant 2.3%inclusion 0.2lift 218 decks 9.32K decks Eden, Seat of the Sanctum 2.3%inclusion 0.5lift 218 decks 9.32K decks Lotus Field 2.2%inclusion 0.1lift 208 decks 9.32K decks Baxter Building 1.4%inclusion -0.1lift 62 decks 4.55K decks The Great Mound 0.1%inclusion 0.1lift 3 decks 3.95K decks Fogwell's Gym 0.1%inclusion 0.2lift 1 decks 1.33K decks Mana Artifacts Sol Ring 65%inclusion -0.1lift 6.02K decks 9.32K decks Arcane Signet 51%inclusion -0.1lift 4.74K decks 9.32K decks Resonating Lute 18%inclusion 0.9lift 461 decks 2.63K decks Thought Vessel 14%inclusion 0.1lift 1.33K decks 9.32K decks Simic Signet 11%inclusion 0.1lift 1.07K decks 9.32K decks Talisman of Curiosity 11%inclusion -0.0lift 1.03K decks 9.32K decks Chromatic Lantern 7.4%inclusion -0.4lift 693 decks 9.32K decks Fellwar Stone 6.8%inclusion -0.5lift 634 decks 9.32K decks Timeless Lotus 6.4%inclusion -0.3lift 87 decks 1.36K decks Commander's Sphere 5.1%inclusion -0.1lift 474 decks 9.32K decks Bender's Waterskin 4.9%inclusion 0.2lift 456 decks 9.32K decks Sol Talisman 4.2%inclusion 0.8lift 393 decks 9.32K decks Potioner's Trove 4.0%inclusion 1.3lift 371 decks 9.32K decks Brass Infiniscope 3.2%inclusion 0.2lift 302 decks 9.32K decks Decanter of Endless Water 3.1%inclusion 0.0lift 288 decks 9.32K decks Elementalist's Palette 2.9%inclusion 0.0lift 273 decks 9.32K decks Mind Stone 2.6%inclusion -0.0lift 246 decks 9.32K decks Astral Cornucopia 2.2%inclusion -0.1lift 206 decks 9.32K decks The Mind Stone 0.5%inclusion -0.5lift 10 decks 1.87K decks Arc Reactor 0.4%inclusion 0.1lift 21 decks 4.73K decks Dependable Quinjet 0.3%inclusion 0.1lift 13 decks 4.19K decks Loki's Scepter 0.1%inclusion -0.6lift 2 decks 1.33K decks Lands Command Tower 78%inclusion -0.1lift 7.24K decks 9.32K decks Dreamroot Cascade 45%inclusion 0.2lift 4.21K decks 9.32K decks Hinterland Harbor 44%inclusion 0.1lift 4.14K decks 9.32K decks Breeding Pool 35%inclusion -0.1lift 3.22K decks 9.32K decks Exotic Orchard 34%inclusion -0.2lift 3.20K decks 9.32K decks Yavimaya Coast 33%inclusion 0.1lift 3.07K decks 9.32K decks Flooded Grove 29%inclusion 0.2lift 2.66K decks 9.32K decks Sodden Verdure 28%inclusion 0.4lift 2.62K decks 9.32K decks Simic Growth Chamber 28%inclusion 0.3lift 2.61K decks 9.32K decks Stomping Ground 27%inclusion -0.1lift 716 decks 2.63K decks Frontier Bivouac 27%inclusion 0.0lift 699 decks 2.63K decks Vineglimmer Snarl 26%inclusion 0.3lift 2.39K decks 9.32K decks Evolving Wilds 25%inclusion 0.1lift 2.33K decks 9.32K decks Terramorphic Expanse 25%inclusion 0.2lift 2.30K decks 9.32K decks Steam Vents 25%inclusion -0.1lift 645 decks 2.63K decks Cinder Glade 24%inclusion 0.0lift 627 decks 2.63K decks Temple of Mystery 24%inclusion 0.2lift 2.22K decks 9.32K decks Opulent Palace 24%inclusion -0.1lift 503 decks 2.11K decks The World Tree 23%inclusion -0.0lift 319 decks 1.36K decks Ketria Triome 23%inclusion -0.1lift 613 decks 2.63K decks Golgari Guildgate 23%inclusion 0.8lift 478 decks 2.11K decks Rejuvenating Springs 22%inclusion -0.1lift 2.10K decks 9.32K decks Dimir Guildgate 22%inclusion 0.8lift 475 decks 2.11K decks Rakdos Guildgate 22%inclusion 0.8lift 311 decks 1.41K decks Temple Garden 22%inclusion -0.2lift 462 decks 2.11K decks Orzhov Guildgate 21%inclusion 0.8lift 300 decks 1.40K decks Overgrown Tomb 21%inclusion -0.2lift 452 decks 2.11K decks Boros Guildgate 20%inclusion 0.7lift 333 decks 1.67K decks Hallowed Fountain 20%inclusion -0.3lift 412 decks 2.11K decks Fabled Passage 19%inclusion 0.0lift 1.76K decks 9.32K decks Watery Grave 18%inclusion -0.3lift 389 decks 2.11K decks Selesnya Guildgate 18%inclusion 0.8lift 386 decks 2.11K decks Misty Rainforest 18%inclusion -0.2lift 1.71K decks 9.32K decks Black Dragon Gate 18%inclusion 0.8lift 380 decks 2.11K decks Paradox Gardens 18%inclusion 1.0lift 1.67K decks 9.32K decks Sulfur Falls 18%inclusion 0.0lift 468 decks 2.63K decks Rootbound Crag 18%inclusion -0.0lift 466 decks 2.63K decks Canopy Vista 18%inclusion -0.1lift 372 decks 2.11K decks Azorius Guildgate 18%inclusion 0.7lift 370 decks 2.11K decks Seaside Citadel 17%inclusion -0.2lift 366 decks 2.11K decks Overflowing Basin 17%inclusion 0.2lift 1.59K decks 9.32K decks Path of Ancestry 17%inclusion -0.3lift 1.55K decks 9.32K decks Zagoth Triome 17%inclusion -0.2lift 352 decks 2.11K decks Spara's Headquarters 17%inclusion -0.2lift 350 decks 2.11K decks Sacred Foundry 16%inclusion -0.2lift 262 decks 1.67K decks Turbulent Wilderness 15%inclusion 0.4lift 1.43K decks 9.32K decks Gruul Turf 15%inclusion 0.4lift 399 decks 2.63K decks Stormcarved Coast 15%inclusion 0.2lift 396 decks 2.63K decks Gruul Guildgate 15%inclusion 0.7lift 396 decks 2.63K decks Insomnia, Crown City 15%inclusion 0.9lift 208 decks 1.40K decks
Along with Kelbek's mill, you can potentially mill 10 + 5 cards total from both sides
Not terribly strong as you bat commander but excellent in your 99, you really only need to empty one opponent's hand (find the aggressive player) and you'll be ready to return the Temple of the Dead flip land to the card drawing, token generating, life draining bat, and rule the table
