While I could imagine a lot of black decks that end up putting Essence Extraction in their sideboard instead of their maindeck, its particularly good in a Torrential Gearhulk deck, since it gives us a lifegain card we can Flashback to help put a game out of reach of our opponents
I would expect that, had plot been introduced during the old block structure, this would be the only implementation of the mechanic in the first set and there wouldnt be all that much for us to chew on besides a little arithmetic
Oswald Fiddlebender Its my understanding that Oswald Fiddlebender is a cEDH-viable commander, but not being too familiar with the highly competitive side of Commander, Im going to ignore that aspect of the card
It doesnt even take much effort for this card to be an efficient answer to pretty much anything your opponents try to pull
Matte There are several types of sleeves available, with Standard size being the size for Magic cards
The Ravnica City framed cards also have 250 serialized cards that can only be found in MKM collector boosters