Eventually, you reach a critical mass of shrines that give you a massive resource advantage to win, be it making everyone discard lots of cards with Honden of Night's Reach or milling opponents with Go-Shintai of Lost Wisdom
Andril, Flame of the West Andril, Flame of the West gives a huge +3/+1 bonus and gets you some 1/1 Spirit tokens
Costing 5 CMC and entering with nine stun counters makes this one of the slowest creatures to ever drift into the battlefield
Dragonback Assault is a sweeper that sticks around to give you 4/4 flying dragon tokens on a landfall ability
Well, its hard for two-color cards to be high up on my list, as having two colors will naturally reduce the number of decks where its playable
Not all base Mystical Archive cards are hugely valuable, as some of them are common and uncommon