mtg blue mill cards Historic Metagame Mono Blue/White Mill // Commander (Zellix,

Nine-Fingers Keene Getting extra lands into play always helps the landfall strategy, but Nine-Fingers Keene takes this a step further by leaning into gate synergies

And it even comes with a built-in way to put counters on itself via Station

Doubling Season Deluge: Combine token generators with "Doubling Season" to double the number of tokens you create

Other known examples include GP Promo Grizzlebrand and various Japanese M15 green foils

Proxy cards are especially popular for testing expensive cards before purchasing originals or building personalized cube environments without needing to source rare singles immediately