New to Grixis Control and brewing a list up right now and not sure about a maindeck choice. I thoughted of playing one Blood Moon in the main deck and one in the side, due to budget reasons I am heavy on Basics, but not sure, if it is good enough especally as random 1-of. Blood Moon destroys a few decks alone, but also can be completly dead. So not sure, if Moon makes sense and if I should play 1 main. That`s the mana base I would like to play:

2 Underground Sea
2 Volcanic Island
2 Badlands
4 Polluted Delta
3 Bloodstained Mire
2 Scalding Tarn
2 Island (maybe + 1 if 21 lands total is better)
2 Swamp
1 Mountain