Its main ability is to pay 2 to copy an artifact token
In a deck like affinity, these artifacts will build up your affinity count, all while burning the opponent with Ingenious Artillerist to speed the game up
Ulamog, the Defiler Ulamog, the Defiler makes the cut due to a very strange rules interaction: If you flicker this, when it comes back into play, Ulamog sees itself as the most expensive card in exile, thus entering with 11 +1/+1 counters
If youre the sort of player who likes building an impenetrable wall of artifacts and enchantments that discourage your opponents from coming anywhere near you, Boarded Window might be your kind of card
Synergies and Win-Cons Check out these two synergies
This two-cost, 1/1 gives you a Mutagen token when it enters, then doubles +1/+1 counters