I took a screenshot as an example in case someone could help me. I realize mulligans may get more mana, but in practice that doesn't work for me either. This is how virtually every run ends. I've gone 1-0 MAYBE twice, and literally never 2 wins out of 8+ tries with that control deck that was posted.
Almost every game, I don't get enough mana (the deck has 24 lands) and the opposing deck has a high number of 1-3 mana cards that just rolls. In this example, I even explored and scry'd something like 4 times attempting to get another land, without any luck.
If someone has a reliable 5-0 singleton deck with a lower curve I'd love to try it.
Do you have exactly 60 cards in the deck? I remember the rumors about 61 or more card decks messing up mana distribution, but I don't know if that was actually ever a thing.