I can see having cards in your deck that tap potential attackers, like Icy Manipulator and Opposition, so if an opponent doesnt draw a card from your commanders ability, you know you can keep your tap-down effects ready for potential attackers from their side of the battlefield
Her base power of 2/2 isnt very imposing, but combined with some auras and equipment, and her innate trample ability, it becomes a force to be reckoned with
Well some might find this to be overkill, personally I find it to be important to integrate as many consistent ways to target things in this deck
I do think it is at least worth looking into insurance so that you can make an informed decision to either go for it or not, though
7 Zimone And Dina So Much Potential Another commander based around drawing cards, Zimone and Dina is a bit more of a slow build than Queza, but comes with a few more abilities to make them more appealing