While Snappy has certainly fallen from grace in the formats it used to dominate, its still one of the most efficient and incredible blue creatures

Creatures (38) 1 Llanowar Elves 1 Birds of Paradise 1 Forgotten Ancient 1 Vigor 1 Woodfall Primus 1 Glen Elendra Archmage 1 Apocalypse Hydra 1 Animar, Soul of Elements 1 Primordial Hydra 1 Kalonian Hydra 1 Xenagos, God of Revels 1 Genesis Hydra 1 Surrak Dragonclaw 1 Lifeblood Hydra 1 Ulvenwald Hydra 1 Selvala, Heart of the Wilds 1 Metallic Mimic 1 Hungering Hydra 1 Whiptongue Hydra 1 Hydroid Krasis 1 Voracious Hydra 1 Gargos, Vicious Watcher 1 Steelbane Hydra 1 Grumgully, the Generous 1 Stonecoil Serpent 1 Renata, Called to the Hunt 1 Nyxbloom Ancient 1 Ironscale Hydra 1 Gilanra, Caller of Wirewood 1 Halana and Alena, Partners 1 Kodama of the West Tree 1 Rampant Rejuvenator 1 Defiler of Vigor 1 Silverback Elder 1 Magus Lucea Kane 1 Hormagaunt Horde 1 Biophagus 1 Malanthrope Lands (37) 12 Forest 2 Mountain 2 Island 1 Minamo, School at Water's Edge 1 Yavimaya Hollow 1 Miren, the Moaning Well 1 Steam Vents 1 Stomping Ground 1 Breeding Pool 1 Rootbound Crag 1 Command Tower 1 Hinterland Harbor 1 Sulfur Falls 1 Nykthos, Shrine to Nyx 1 Frontier Bivouac 1 Spire Garden 1 Castle Garenbrig 1 Fabled Passage 1 Ketria Triome 1 Rejuvenating Springs 1 Training Center 1 Rockfall Vale 1 Dreamroot Cascade 1 Stormcarved Coast Spells (24) 1 Sol Ring 1 Goblin Bombardment 1 Rampant Growth 1 Kodama's Reach 1 Ashnod's Altar 1 Fling 1 Nature's Lore 1 Altar of Dementia 1 Skyshroud Claim 1 Doubling Season 1 Farseek 1 Comet Storm 1 Momentous Fall 1 Cultivate 1 Bioshift 1 Hardened Scales 1 Heroic Intervention 1 Traverse the Outlands 1 The Great Henge 1 The Ozolith 1 Garruk's Uprising 1 Jugan Defends the Temple 1 Master Chef 1 The First Tyrannic War Hydras The Hydra subtheme was just too much of an overcommitment to the bit for my tastes in this particular build

I already have some ideas on how to change it
Making all your swamp symbols payable with two life in any cost makes this a powerhouse
Well, that's an emphatic, resounding Who knows? but, for Best of Three, probably yes
The effect is actually quite strong as a finisher combo, where it switches life point totals with your opponent