It's awesome sauce (or as I like to say "sausome")

Sliver Swarm Commander (1) Creatures (43) Crystalline Sliver Winged Sliver Clot Sliver Shifting Sliver Blade Sliver Synapse Sliver Brood Sliver Quick Sliver Crypt Sliver Hibernation Sliver Bonesplitter Sliver Firewake Sliver Gemhide Sliver Harmonic Sliver Might Sliver Two-Headed Sliver Necrotic Sliver Sinew Sliver Bonescythe Sliver Blur Sliver Sentinel Sliver Striking Sliver Megantic Sliver Galerider Sliver Syphon Sliver Manaweft Sliver Constricting Sliver Sliver Hivelord Diffusion Sliver Venom Sliver Lavabelly Sliver Hollowhead Sliver Cloudshredder Sliver Spiteful Sliver Cleaving Sliver Realmwalker Rukarumel, Biologist Capricious Sliver Hatchery Sliver Lazotep Sliver Regal Sliver Taunting Sliver Titan of Littjara Instants (1) Sorceries (10) Windfall Decimate Harsh Mercy Nature's Lore Three Visits Farseek Distant Melody Cultivate Cleansing Nova Crippling Fear Enchantments (1) Artifact (7) Sol Ring Fellwar Stone Vanquisher's Banner Herald's Horn Pillar of Origins Icon of Ancestry Arcane Signet Lands (37) Forest x3 Plains x2 Swamp x2 Mountain x2 Island x2 Rocky Tar Pit Mountain Valley Grasslands Flood Plain Jungle Shrine Savage Lands Seaside Citadel Exotic Orchard Command Tower Nomad Outpost Mystic Sanctuary Sandsteppe Citadel Opulent Palace Frontier Bivouac Prairie Stream Sunken Hollow Smoldering Marsh Cinder Glade Canopy Vista Ash Barrens Irrigated Farmland Sheltered Thicket Scattered Groves Path of Ancestry Unclaimed Territory Secluded Courtyard Commander, Theme, and Strategy The deck title says it all

COMMANDER DECKS (5 TYPES) Dragons
Crew 1 Legendary Artifact - Vehicle Fear of Missing Out When this creature enters, discard a card, then draw a card
Gollum, Riddle Master Halfling Horror Gollum, Riddle Master is up next, a two-mana (1B, 1C) 3/1 who, when it enters, has you choose odd or even