Venerated Loxodon is a must have for this deck and just provides so much power spread across multiple creatures
Bounce/Karoo Lands The bounce lands (also called Karoos after the original Visions cycle) offer card advantage and allow you to play fewer lands in your deck
You get one card, but have two versions of them, often times with new abilities and more power on the back, at the cost of a somewhat situational flip condition
It also has a removal and pump ability built-in
On top of that, it gives other non-Human Creatures you control +1/+1 and undying, which makes any ETB effects you have significantly more valuable, and makes all of your threats a lot more, well, threatening
She rocks the very powerful deathtouch and first strike combo, so she will kill, in combat anyone she engages without first or double strike