Design a really cheap MTG format

Heirloom Format

• Inspired by the MTGO budget format Heirloom but with paper price limits

• Minimum deck size: 60 cards

• No more than 4 copies of any card, except basic lands

• Cards can be of any rarity

• The legal card pool rotates a month after each Standard set release based on card price thresholds checked on Scryfall with the following search:

f:vintage ((rarity:c and eur<=0.1) or (rarity:u and eur<=0.2) or ((rarity:r or rarity:m) and eur<=1)) and tix<=0.05

• Common cards under 0.1 EUR/0.05 tix

• Uncommon cards under 0.2 EUR/0.1 tix

• Rare cards under 0.3 EUR/0.2 tix

• Mythic cards under 0.6 EUR/0.5 tix

• Very low barrier to entry with decks costing less than $10, unlike Pauper where some "budget" decks still cost $60+

• If the format was popular enough to influence card prices, rotations would ban the most used cards, preventing the metagame from becoming stagnant

• Lets you play with cards that are bad in other formats but become viable here

• Encourages creativity in deckbuilding with quirky card choices

• Games decided by wits and luck rather than coin

I'm excited to hear your ideas for cheap MTG formats!