This is a Commander-oriented list
However, while Cube environments often feature mostly cards that see or have seen play in Constructed, Eternal Masters likely has many cards that most Magic players have probably never touched before especially not in a Limited environment
(For the record, I had played Pokmon video games before, but never the TCG
Magic 2013 made some new flavorful lords with cards like My pick for 2012 is Avacyn Restored had an Angel typal theme and was trying to add a handful of new monster typal cards, so the Design team decided to make a neutral typal-friendly card, similar to what we had done with Just My Typal That's as far as we'll get through today
These sorts of shenanigans seem too awesome to actually be real, though, so I doubt itll happen much outside the causal room on Magic Online
The game mode sees players selecting two packets and combing the contents to create a unique deck, often with outlandish results