In short, Yuriko, the Tiger's Shadow will keep coming back for 2 mana, no matter how many times you think you've killed them
Free 9/9s are good, especially when they have the abilities that Zacama does
Because gates enter tapped and you often want to assemble 9-10 gates to enable an alternate win condition, the deck wants to be controlling, or at least play for the late game
Scroll Rack let him put back those lands, trade them in for spells, and Tax for the same paltry eight basics over and over again
In a typical 4-Player FFA game if we deal combat damage to our 3 opponents and they each mill a creature card we then draw 3 cards, a pretty great rate
Sauron the Dark Lord packs unique ability on top of unique abilities, which makes him really fun to play