Ive been primarily a Draft player for a solid decade now, and in that time Magic has changed in ebbs and flows, but nothing like what it feels were going through now
For example, cards like Senseis Divining Top or Realmwalker really benefit from changing the top card of your library Graveyard Once you have sacrificed your fetch land, assuming there are no replacement effects, they will end up in your graveyard
Five mana grants you a typical edict creature stapled to an 11/11, assuming each player sacrifices a creature, and it only gets better
People were playing around with Eldrazi ever since BfZ came out (and the deck was already impressive then)
Several of these are more than powerful, standing out not just among their deck but as additions to the wider Commander format
This set was unusual in a variety of different ways