I had the various Orbs of Dragonkind in the deck, but eventually cut them for more Dragons, except for Jade Orb, since it gives hexproof to whatever Dragon you cast with its mana, helping to ensure its survival until your next turn
Also, it uses time counters for the Timey-Wimey deck
Now, 6 mana to cast and 6 for the ability is clunky as heck, so this certainly isnt a tutor that should slot into every Commander deck or anything like that
A lot of the on-theme finishers (Meloku, Multani, Avenger of Zendikar, Rampaging Baloths, Primeval Titan) are at a high power level, which is great for convincing the power-max crowd to try it but awkward if you're trying to tone things down
Though you may expect a Zombie to be the commander of a Zombie deck, Gisa and Geralf are necromancers that prove an exception to the rule