We've got a pair of giant sea serpents here
6 Lightning Strike Of course, more aggressive builds really do want the option to go up top with their removal spells
Howling Mine Howling Mine (and similar iterations like Dictate of Kruphix or Kami of the Crescent Moon) is central to whats known at Commander tables as group hug. In Commander lingo, thats cards that provide a benefit to one or several of your opponents
With multiple dragons on the battlefield, this can easily turn Dromoka into a counter vending machine that makes your Dragons outscale any threat that might attempt to stand against them
Most of Orzhovs card draw is tied to a few themes, like sacrifice, creatures with mana value 3 or less in the graveyard, or lifegain
We need more in the way of core staple cards but this is trickier than it sounds with the cube power level being so high