Doubling and casting at flash speed is awesome

Symbiotic Swarm Deck List Commander (1) 1 Kathril, Aspect Warper Planeswalkers (1) 1 Ajani Unyielding Creatures (34) 1 Tayam, Luminous Enigma 1 Nikara, Lair Scavenger 1 Yannik, Scavenging Sentinel 1 Avenging Huntbonder 1 Cartographers Hawk 1 Vitality Hunter 1 Daring Fiendbonder 1 Slippery Bogbonder 1 Void Beckoner 1 Titanoth Rex 1 Akroma, Angel of Wrath 1 Angel of Finality 1 Cataclysmic Gearhulk 1 Kalemnes Captain 1 Odric, Lunarch Marshal 1 Reveillark 1 Solemn Recruit 1 Sunblast Angel 1 Zetalpa, Primal Dawn 1 Cairn Wanderer 1 Soul of Innistrad 1 Soulflayer 1 Hornet Queen 1 Majestic Myriarch 1 Splinterfright 1 Archon of Valors Reach 1 Karametra, God of Harvests 1 Aerial Responder 1 Vampire Nighthawk 1 Acidic Slime 1 Sakura-Tribe Elder 1 Satyr Wayfinder 1 Skullwinder 1 Nyx Weaver Spells (13) 1 Blood Curdle 1 Unbreakable Bond 1 Obscuring Haze 1 Selective Adaptation 1 Ever After 1 Duneblast 1 Unburial Rites 1 3Deathsprout 1 Despark 1 Grisly Salvage Artifacts (7) 1 Bonders Ornament 1 Netherborn Altar 1 Mimic Vat 1 Arcane Signet 1 Commanders Sphere 1 Sol Ring 1 Swiftfoot Boots Enchantments (6) 1 Martial Impetus 1 Parasitic Impetus 1 Predatory Impetus 1 Together Forever 1 Abzan Ascendancy 1 Deadbridge Chant Lands (38) 1 Nesting Grounds 1 Canopy Vista 1 Caves of Koilos 1 Exotic Orchard 1 Gavony Township 1 Grim Backwoods 1 Sungrass Prairie 1 Blighted Woodland 1 Command Tower 1 Golgari Rot Farm 1 Krosan Verge 1 Memorial to Folly 1 Myriad Landscape 1 Orzhov Basilica 1 Sandsteppe Citadel 1 Selesnya Sanctuary 1 Blossoming Sands 1 Evolving Wilds 1 Jungle Hollow 1 Scoured Barrens 7 Plains 7 Swamp 4 Forest

2021-06-18 Cascade triggers when you cast the spell, meaning that it resolves before that spell
There is an Eye in the Dark Tower that does not sleep
Haste.Brushfire Elemental cant be blocked by creatures with power 2 or less.Landfall Whenever a land enters the battlefield under your control, Brushfire Elemental gets +2/+2 until end of turn