Hearthpwn

I've had about 40 perfect games.  But maybe only 2 in the last month (1 Millhouse, 1 Yogg)

Perfect games used to be rather common!  I had back-to-back perfect games multiple times in 2019, often with Daryl, Elise or Van Cleef when the hero pool was less diverse and more minions had divine shields (shielded mini-bot, 3/4 divine shield taunt dragon and of course Cobalt Guardian).

With all the early game heroes that hit you early like Lich King and Millhouse, perfect games are way less common than they once were. 

The hero most likely to get a perfect game is Yogg, btw -- for obvious reasons.  Rafaam is up there too.