Now, granted it's hard to make a dance for a dragon, and seriously that model must be very hard to work with, but let's try to think of potential dances for this girl eh? Ready set go!
RiotStayAwhileNlistn10 votesthe Wyrm maybe...
HexSeal3 votesMaybe she flies up flapping her wings and does some spins in air kind of like nautilus's dance? That would be kind of cool.
ShinRaigeki3 votesIf Dragon Shyvana didn't do the Chicken Dance, I'd be sincerely disappointed. Seems perfect for her.
Sir ArmaMalum9 votes
Already taken :(
ShinRaigeki1 votesNobody really cares. Hers is more like a chicken Jig, No joint bones.
Water of Eden1 votesHuh I've never tried dancing while in dragon form with Shyvana. I know for a fact that both Nid and Elise have dances in their alternate forms but maybe it's because they're not actually ultimates the way Shyvana's Dragon Form is. I guess Riot just figured you wouldn't press dance in dragon form because you SHOULD be either engaging or escaping with it.
PS Nid's dance in cougar form is her chasing her tail and Elise's is her swinging her spider legs.
Sir ArmaMalum3 votesSwain and Shyvana both have unique interactions that against this frame of thinking. Shyvana has a unique taunt with dragonslayer vayne and Swain has a unique joke in ult form. Granted dancing takes longer to appreciate but there's always that 2-3 secs after an ace that you could use it for :)
Hyrum Graff4 votes..Or if you're trick2g, in lane while they're attacking you, for maximum disrespect :O
jwf9991 votesHonestly she should to the cuban shuffle.
lolstar481 votesshyvana looks like she's twerking when she dances =.= 
PublicArtillery1 votesMaybe she could do the dragon of the sun dance from avatar last air bender.
Legit Dinosaur1 votesNeither does Valor :(