Some players use proxies for more authentic playtesting of decks before they spend crazy amounts of money on them
It was only available inside random booster packs of the S4a Shiny Star V series that was released in Japan, in November, 2020
If you cast a card with the Learn keyword, you could pick between two options once it resolved: either discard a card to draw a card or grab a Lesson card from outside the game, most commonly from your sideboard, and put it into your hand
But what determines what you should pay for each card
Tabs prevent misplacement and speed up retrieval
Red-White Creature (26) Burning Sun's Avatar Charging Monstrosaur x2 Demanding Dragon Exultant Skymarcher x2 Frenzied Raptor Goblin Motivator Hostile Minotaur Inspiring Captain Knight of New Benalia x3 Pyromantic Pilgrim x2 Rustwing Falcon x2 Serra's Guardian Shivan Dragon Silverbeak Griffin Sky Terror x2 Skyknight Legionnaire x2 Sun Sentinel x2 Instant (7) Dual Shot x2 Inspired Charge x2 Lightning Strike x2 Moment of Triumph Sorcery (1) Enchantment (2) Land (24) Mountain x10 Plains x10 Stone Quarry x4 This Boros deck is a decently constructed aggro deck for playing against the other Starter Kit deck, but it has far too many vanilla creatures to be viable in any real format