Another option is to have Sauron, the Necromancer be your commander, since the Nazgl are his servants
Unfortunately, to mitigate its effectiveness, Flatline wont remove buffs and counters from your opponents creatures

Archaeomancer's Map Archdruid's Charm Axgard Armory Bad River Bant Panorama Black Chocobo Bloodstained Mire Bog Glider Borderland Explorer Borderland Ranger Boseiju Reaches Skyward Caravan Vigil Case of the Shattered Pact Centaur Rootcaster Civic Wayfinder Crop Rotation Cultivate Deep Reconnaissance Diligent Farmhand District Guide Double Play Dreamscape Artist Druid of the Emerald Grove Ecologist's Terrarium Edge of Autumn Elemental Teachings Esper Panorama Eternal Dominion Exploding Borders Explosive Vegetation Far Wanderings Farfinder Farhaven Elf Flare of Cultivation Flood Plain Flooded Strand Frenzied Tilling Gaea's Balance Gatecreeper Vine Ghost Quarter Grasslands Grave Upheaval Grixis Panorama Harrow Hired Giant Horizon Spellbomb Huatli, Poet of Unity Into the North Jund Panorama Jungle Wayfinder Knight of the Reliquary Kodama's Reach Krosan Verge Land Aid '04 Landscaper Colos Migratory Greathorn Mountain Valley Mwonvuli Acid-Moss Mycosynth Wellspring Natural Balance Nature's Lore Navigation Orb Naya Panorama New Frontiers Nissa, Vastwood Seer Oath of Lieges One with Nature Orchard Strider Outcaster Greenblade Path to Exile Path to the World Tree Peregrination

Theres Tron and maybe other ways to ramp better to big Eldrazi, but that seems decent and its colorless
Skip to main content SIGN IN Battle for Zendikar Foil: Gideon, Ally of Zendikar Edition: Battle for Zendikar Type: Legendary Planeswalker - Gideon Cast: Rarity: M Collector #: 029 [+1}: Until end of turn, Gideon, Ally of Zendikar becomes a 5/5 Human Soldier Ally creature with indestructible that's still a planeswalker