Casting a Conflagrate almost entirely through Delve mana is a new line this card enables for the deck, to give just one example
Sure, it's more limited than Enchantments like Mesa Enchantress above, but with three options, you have three deck types he can lead - Equipment, Auras and Enchantments are all in the top 15 archetypes
Hakoda, Selfless Commander Hakoda, Selfless Commander offers card advantage and protection in the command zone, but its lacking as an ally commander
While turning it into a creature is cumbersome, you dont actually have to do that at all to make The Seriema worth running
As Show of Confidence will trigger the Dragons treasure-making ability for each copy, you can use it early to make a ton of mana and keep churning through your deck
A storm is brewing with MTG Tarkir: Dragonstorm