Why is this guy legendary?

Commander / EDH* Budget GU (Simic) Ramp RG (Gruul) RUG (Temur) UR (Izzet)

Magnvs

Creature (40)

• 1x Acidic Slime
• 1x Avenger of Zendikar
• 1x Birds of Paradise
• 1x Burnished Hart
• 1x Carnage Tyrant
• 1x Coiling Oracle
• 1x Consecrated Sphinx
• 1x Diluvian Primordial
• 1x Dragonlord Atarka
• 1x Elvish Mystic
• 1x Etali, Primal Storm
• 1x Farhaven Elf
• 1x Ghor-Clan Rampager
• 1x Goreclaw, Terror of Qal Sisma
• 1x Hellkite Tyrant
• 1x Inferno Titan
• 1x Kalonian Hydra
• 1x Molten Primordial
• 1x Mystic Snake
• 1x Phyrexian Metamorph
• 1x Prime Speaker Zegana
• 1x Prowling Serpopard
• 1x Rattleclaw Mystic
• 1x Reclamation Sage
• 1x Rhonas the Indomitable
• 1x Ruric Thar, the Unbowed
• 1x Sagu Mauler
• 1x Sakura-Tribe Elder
• 1x Scavenging Ooze
• 1x Solemn Simulacrum
• 1x Somberwald Sage
• 1x Stormbreath Dragon
• 1x Surrak Dragonclaw
• 1x Thragtusk
• 1x Thundermaw Hellkite
• 1x Trygon Predator
• 1x Urabrask the Hidden
• 1x Vizier of the Menagerie
• 1x Weaver of Currents
• 1x Yavimaya Elder

Land (39)

• 1x Alchemist's Refuge
• 1x Breeding Pool
• 1x Cascade Bluffs
• 1x Command Tower
• 1x Fire-Lit Thicket
• 1x Flooded Grove
• 2x Forest
• 1x Forgotten Cave
• 1x Frontier Bivouac
• 1x Grove of the Burnwillows
• 1x Gruul Turf
• 1x High Market
• 1x Hinterland Harbor
• 1x Homeward Path
• 2x Island
• 1x Izzet Boilerworks
• 1x Kessig Wolf Run
• 1x Lonely Sandbar
• 1x Misty Rainforest
• 1x Mountain
• 1x Opal Palace
• 1x Rootbound Crag
• 1x Scalding Tarn
• 1x Simic Growth Chamber
• 1x Spire Garden
• 1x Steam Vents
• 1x Stomping Ground
• 1x Sulfur Falls
• 1x Taiga
• 1x Temple of Abandon
• 1x Temple of Epiphany
• 1x Temple of Mystery
• 1x Temple of the False God
• 1x Tranquil Thicket
• 1x Tropical Island
• 1x Volcanic Island
• 1x Wooded Foothills

Commander (1)

Instant (8)

• 1x Beast Within
• 1x Brainstorm
• 1x Cyclonic Rift
• 1x Krosan Grip
• 1x Nature's Claim
• 1x Nexus of Fate
• 1x Pongify
• 1x Worldly Tutor

Sorcery (7)

• 1x Cultivate
• 1x Explore
• 1x Mizzium Mortars
• 1x Ponder
• 1x See the Unwritten
• 1x Tooth and Nail
• 1x Treasure Cruise

Enchantment (3)

• 1x Lurking Predators
• 1x Rhystic Study
• 1x Sarkhan's Unsealing

Artifact (2)

• 1x Chromatic Lantern
• 1x Sol Ring

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Maybeboard

Creature (7)

• 1x Beast Whisperer
• 1x Frost Titan
• 1x Ghalta, Primal Hunger
• 1x Hydra Omnivore
• 1x Pathbreaker Ibex
• 1x Polis Crusher
• 1x Skyline Despot

Instant (5)

• 1x Heroic Intervention
• 1x Mystic Confluence
• 1x Spelljack
• 1x Temur Charm
• 1x Trap Essence

Planeswalker (1)

• 1x Sarkhan Unbroken

Sorcery (3)

• 1x Blasphemous Act
• 1x Hour of Devastation
• 1x Overwhelming Stampede

Artifact (2)

• 1x Crystal Shard
• 1x Erratic Portal

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I mean, he is powerful sure, his effect is epic... But the name seems too generic. It could be any gigantic supernatural creature that happens to be wandering around a Maelstrom. And what legends should surround this thing other than it just wrecks everything and everyone? It's a natural disaster for all the folks of the multiverse care...

Date added	10 years
Last updated	5 years
Legality	This deck is Commander / EDH legal.
Rarity (main - side)	15 - 0 Mythic Rares 47 - 0 Rares 17 - 0 Uncommons 16 - 0 Commons
Cards	100
Avg. CMC	4.02
Tokens	Ape 3/3 G, Beast 3/3 G, Morph 2/2 C, Plant 0/1 G
Folders	EDH, EDH Decks, BOUGHT 1st round