With the help of Amulet of Vigor and the so-called bounce lands, Primeval Titan can be cast as early as turn two, instantly ramping you up to four mana and running away with the game
But then, if you look more closely at the first and third of those abilities, you'll see that they can be used in entirely different ways, depending on whether you target your opponent's side of the board or your own
Still others, myself included, will be secure in the belief that Zhulodok is actually the best one of the bunch
You get the first two with Sefris of the Hidden Ways: venture and reanimation
I wanted to add more lifegain for Crested Sunmare to roll off of that still stuck to the deck's theme and didn't gobble up too many slots, but investing too many cards into something that isn't your commander without black tutors never works out well