This is a Gruul Sliver tribal deck. Grumgully gives every Sliver (a non-Human) an extra +1/+1 counter as it enters, and Metallic Mimic, Hardened Scales, Branching Evolution, Kami of Whispered Hopes and Ozolith multiply that counter. Shared Sliver lords stack power, evasion, haste and double strike across a wide board, and proliferate grows the counters further. The swarm is fed by mana dorks, Sliver mana abilities, tribal cost reduction and draw-on-cast engines, then turned sideways for an overwhelming alpha strike. How it wins: A wide, hasty board of counter-boosted Slivers with stacked anthems, trample, menace and double strike swings for lethal combat damage, with mass pumps or a Triumph of the Hordes infect turn, plus incidental poison from Virulent Sliver, finishing off the table. Key roles: - Counter amplification: Grumgully's entry counter is doubled or increased on every creature, and proliferate and mass-counter spells keep growing the board turn after turn (Hardened Scales, Branching Evolution, Evolution Sage) - Sliver lords: Shared static abilities stack across the hive to give every Sliver bigger stats, haste, trample, menace and double strike, so each new body raises the whole team's damage (Fury Sliver, Megantic Sliver, Thrumming Hivepool) - Tribal mana and card flow: Dorks, mana-granting Slivers, cost reducers and cast triggers accelerate deployment and refill the hand as the swarm comes down (Gemhide Sliver, Beast Whisperer, Herald's Horn) - Swarm multiplication: Copying Sliver spells and generating Sliver tokens widens the board, and each new body enters with counters and inherits every lord's bonus (Hatchery Sliver, Brood Sliver, Sliver Hive) - Combat finishers: One-shot team pumps and trample or infect turns convert a wide board into a lethal swing or a poison kill, while combat-damage triggers draw cards (Overwhelming Stampede, Triumph of the Hordes, Toski, Bearer of Secrets) - Board protection: Indestructibility, hexproof and persist effects shield the stacked board from sweepers before or during the alpha strike (Heroic Intervention, Inspiring Call, Cauldron of Souls)

Grumgully, Friend of the Hive decklist

• 10× Mountain
• 15× Forest
• Command Tower
• Return of the Wildspeaker
• Return to Nature
• Arbor Elf
• Beast Within
• Birds of Paradise
• Cauldron of Souls
• Chaos Warp
• Herald's Horn
• Llanowar Elves
• Sol Ring
• Triumph of the Hordes
• Venom Sliver
• Wild Growth
• Heroic Intervention
• Hardened Scales
• Inspiring Call
• Cinder Glade
• Overwhelming Stampede
• Karplusan Forest
• Homing Sliver
• Virulent Sliver
• Stomping Ground
• Game Trail
• Oran-Rief, the Vastwood
• Beast Whisperer
• Lifecrafter's Gift
• Metallic Mimic
• Horned Sliver
• Muscle Sliver
• Spined Sliver
• Sliver Hive
• Copperline Gorge
• Rootbound Crag
• Utopia Sprawl
• Heart Sliver
• Evolution Sage
• Jiang Yanggu, Wildcrafter
• Karn's Bastion
• Cleaving Sliver
• Bladeback Sliver
• Hollowhead Sliver
• Spiteful Sliver
• Tempered Sliver
• Hunter's Insight
• Adaptive Automaton
• Volt Charge
• Brood Sliver
• Hunter Sliver
• Magma Sliver
• Quick Sliver
• Root Sliver
• Manaweft Sliver
• Branching Evolution
• Megantic Sliver
• Firewake Sliver
• Fury Sliver
• Fungus Sliver
• Gemhide Sliver
• Might Sliver
• Spinneret Sliver
• Two-Headed Sliver
• Predatory Sliver
• Striking Sliver
• Thorncaster Sliver
• Vanquisher's Banner
• Toski, Bearer of Secrets
• Smell Fear
• Kami of Whispered Hopes
• Ozolith, the Shattered Spire
• Capricious Sliver
• Hatchery Sliver
• Thornspire Verge
• Thrumming Hivepool