Magic: The Gathering Arena decklists for people on a budget

I’ve been playing a lot of MTG Arena lately, but I refuse to spend any money on it, which means I can’t craft many rare cards. When I look up meta decklists , they always include a lot of rares and mythic rares. I don’t want to spend all my rare wildcards on one deck! That’s sort of what the Pauper format is for. Pauper decks are only allowed to use common cards, which makes them cheap. But that…