The first three chapters of the saga side essentially let you keep a bookmark on the one chapter that best benefits you
Then you can exile a graveyard and gain a bunch of life, ramp out two lands of any type not just basics tapped, make a pair of 2/2 Bear tokens, or toss a pair of counters on all of your stuff for the going wide, and with the Bears as a default that's two 4/4s for six mana on a naked board
The 0 defense is also an advantage, such as not being affected by Gouki The Great Ogre, and since it is not targeted, Book of the Moon is ineffective
Oracle of Dust works great once youve setup processing to allow us to rebuy our opponents creatures again, while also drawing cards, and Ulamogs Despoiler can make up for the reduction in size when eternalized late in the game
Don Ying triggers on Special Summon to add Ancient Warriors - Rebellious Lu Feng from Deck to hand
Veiler is a Spellcaster Tuner as needed (which is rare, but I'd rather have the search that comes with it), but is very limited in activation