Question: what is in a magic the gathering deck builder's toolkit?
Answer: The Core Set 2020 Deck Builder's Toolkit is a box set that was released on July 12, 2019. It contains 100 basic land cards, 125 fixed cards suitable for improving the M20 Planeswalker decks, and four 15-card booster packs (Guilds of Ravnica, Ravnica Allegiance, War of the Spark, and Core Set 2020).