Most of the cards have been commented on in my other deck guide:
Big Azindel This deck is just a miniscule primal splash for market cleaver and a more down to the ground approach to a meta with a bunch of other midrange decks. Do not use this if you are engaging too many temporal decks, as the removal is pretty bad against those.
Mystic Ascendant here tries to bridge the matchups against control decks, this won't really matter against temporal, but any other fair control or big midrange matchup will make him shine.
Dark Return
x2
1
Seek Power
x4
2
Annihilate
x4
2
Ripknife Assassin
x3
2
Teacher of Humility
x4
2
Tome of Repetition
x2
2
Xenan Initiation
x2
3
Auralian Merchant
x4
3
Auric Interrogator
x3
3
Ayan, the Abductor
x4
4
In Cold Blood
x2
4
Sandstorm Titan
x4
4
Vara, Vengeance-Seeker
x4
5
Worldbearer Behemoth
x4
6
Mystic Ascendant
x2
8
Azindel, Revealed
x2
Primal Sigil
x1
Shadow Sigil
x4
Time Sigil
x4
Amber Waystone
x4
Crest of Mystery
x4
Seat of Mystery
x4
Xenan Banner
x4
View Deck on Shiftstoned