In those situations we hope to race our opponent with our Splinter Twin-eqsue turn four kill
The market is very competitive, and especially as a new seller you are going to have to price at or below TCG-Low (rather than mid) to sell much of anything
If there are exactly two permanents named Brothers Yamazaki on the battlefield, the "legend rule" doesn't apply to them

Blackcleave Cliffs Blood Crypt Blooming Marsh Boseiju, Who Shelters All Botanical Sanctum Bottomless Vault Bountiful Promenade Breeding Pool Cactus Preserve Caldera Lake Canopy Vista Canyon Slough Castle Ardenvale Castle Embereth Castle Garenbrig Castle Locthwain Castle Vantress Cathedral of War Cave of the Frost Dragon Celestial Colonnade Chocobo Camp Choked Estuary Cinder Glade City of Ass Clifftop Retreat Coastal Peak Commercial District Concealed Courtyard Copperline Gorge Cori Mountain Monastery Creeping Tar Pit Crypt of Agadeem Dalkovan Encampment Darkslick Shores Deathcap Glade Den of the Bugbear Deserted Beach Dragonskull Summit Dreamroot Cascade Drowned Catacomb Dungeon Descent Dwarven Hold Eclipsed Steppe Elegant Parlor Emeria, the Sky Ruin Exclusive Nightclub Festering Thicket Fetid Pools Field of the Dead Fire Nation Palace Flamekin Village Foreboding Ruins Fortified Beachhead Fortified Village Frostboil Snarl Furycalm Snarl Game Trail Gilt-Leaf Palace Glacial Fortress Glasspool Shore Glittering Massif

In terms of collecting, Dragon creatures are almost always rares or mythic rares, and, as such, are hugely desirable (and impressively valuable) among fans and collectors of the franchise
Should you ever run into a situation where you can cast this in response to a Whirlwind Denial , please let me know