Having a Dragon enter under your control gives Sarkhan a +1/+1 counter and lets you make Sarkhan a Dragon on his own while giving him flying
On top of that, there are Stellar Sights, poster-like treatments, triumphant framings, Japanese showcase art cards, and my personal favorite, the pulp sci-fi special guest cards
The control element is there, but to make this deck a control-plus-aggro deck would be to craft a powerful work of art
This deck wants to use Leaders Double Attack keyword to pressure the opponents Life cards, trying to drop them low as fast as possible
Like some of the best counterspells it can stop any counterable spell it chooses for the bargain price of two mana
How can that possibly be a good thing