Archetypes:

UR - spells
UW - blink
UB - mill
BR - sacrifice
WR - boros (obv)
WB - aristocrats
GB - elves
GW - enchantments
UG - typical UG shit...
GR - werewolves

UWBRG - Shrines / Gates

Alchemy’s digital-only mechanics:

Conjure: Creates cards out of thin air as a digital object that acts just like a normal card would (as compared to tokens).
Seek: Cards with this mechanic will have the game randomly choose a card from the library that meets the criteria specified on the card and put it in to your hand.
Perpetual: Permanently changes a card’s properties, whether they are in exile, graveyard, hand, or battlefield.
Intensity: Cards with intensity will start with their intensity at a certain value, and the card’s text will include mechanics for perpetually increasing or decreasing its intensity as the game goes on.
Boon: Boon is a way to represent delayed triggers, similar to an emblem, but once they trigger, they disappear.