Efficiency is what enough of the player base desires, so naturally, its what drives a lot of content creation, too
I tend to shy away from playing mill decks for a for a few reasons, including bad experiences in the past (with Mono-Blue Mill in Modern being the all-time worst Much Abrew deck), the fact that many mill decks play like bad burn decks, and most importantly because I usually don't enjoy mill decks
I should note that the proper term for a group of squirrels is a "dray" or a "scurry." I like to name my decks in fun ways, but dray and scurry didn't inspire me to latch onto a clever name, so I ended up going with something that plays off of our Squirrel General's name
With plenty of creatures going to your graveyard, threshold helps Krosan Restorer become a powerful version of ramp
At the time, a Japanese trademark listing was uncovered, one that loosely translated to reveal sets with the names Mega Brave and Mega Symphony