bloomburrow mtg booster box Magic The Gathering - six booster packs. Amazon.com: Magic: The Gathering Bloomburrow

Yard Sale or Garage Sale This may be the either the obvious answer or an option you have yet to consider

The Cabbage Merchant The Cabbage Merchant generates a lot of Food tokens during the course of a game based on the spells your opponents cast

[2] Specifically, each Japanese booster box is guaranteed to contain 1 Super Rare card (including Ultra Rares and Special Art Rares), 3 to 4 Art Rares, and 4 Double Rares

Of course, if this success continues, Standard has plenty of defense mechanisms it can deploy against strategies like this

Some hydras in the past were red which also fits since they deal damage which is in reds color pie

[1] You can activate 1 of the following effects