The Full-Text Lands

All drops from the Dr. Lair's Secretorium Superdrop have a roughly 7% chance to have a Blueprint artifact card instead of their normal bonus card: [SLD:603-607].
Secret Lair Drop — Secret Lair Drop — box — 2021-08-25
Land (5)
1 Forest
1 Island
1 Mountain
1 Plains
1 Swamp
Forest