Its also nice to have a 0-mana sacrifice outlet attached to a commander, though this one isnt nearly as powerful as the likes of Yawgmoth, Thran Physician
Also, exiling half a players library is very strong since the cards never touch the graveyard, but at the same time there are diminishing returns in doing that each time you recast Ulamog, and are you really building in a milling alternate win con
No, there's not
The Amber cards, while there are some strong glimmers, are more focused on giving buffs and enhancements to other cards, adding to the stats of player cards, or removing stats from opponent cards
It allows the controller to look at and cast the spells from the top of their library
Outside of those, the looks of the 42 cards in Through the Ages are beyond distinctive and spread across every rarity