u/Abject_Maximum_190

As the title already says i am wondering why all the monster tron lists play this instead of [[Hidden Grotto]] or [[Rumble Arena]] ? Is it because of the minimal sinergy with the 1-2 [[Pulse of Murasa]] in the sideboard? I see no other reason because all the lists at www.mtgdecks.net don‘t play [[Haunted Fengraf]] either.
Would you guys say it‘s still okay to play the scry-lands instead?

Hi community, me and a friend (Long time magic players) are starting with pauper, i am going for Monster Tron (mb colorless) and will get UW familiars. I was wondering how is the matchup is it pritty lopsided or more balanced? Whats your experience? Thanks in advance !