REQUIREMENTS of what I expect of a R20 DM: MUST have charactomancer enabled, MUST have at least the PHB. At least until the day that R20 lets us access our own digital books and tokens. Now about me: I go back to 1eAD&D and the first Box set D&D days and wargames. I've played and GM'd more games than most know or heard of. Have created my own RPG and war games. Longest running R20 campaign was six months, took a summer break and now in season 2 - two different games and plots at same time too. Current focus is D&D5 (though still a 4e fan), wish there were more or could garner more DCCRPG interest, GURPS4 or Savage Worlds interest. But 5e is such a hit the ball out of the park balance of quick dirty RPG to even as crunchy as 4e was balance that it's undisputed king.