10 cards where the set is “sld” and the collector number >= 349 and the collector number <= 358

Alchemist's Refuge (Secret Lair Drop #358)
Desolate Lighthouse (Secret Lair Drop #352)
Gavony Township (Secret Lair Drop #357)
Grim Backwoods (Secret Lair Drop #354)
Kessig Wolf Run (Secret Lair Drop #355)
Moorland Haunt (Secret Lair Drop #349)
Nephalia Drownyard (Secret Lair Drop #351)
Slayers' Stronghold (Secret Lair Drop #356)
Stensia Bloodhall (Secret Lair Drop #353)
Vault of the Archangel (Secret Lair Drop #350)

This search is finished. Now the real work can begin.