9 cards where the set is “sld” and (the collector number >= 1444 and the collector number <= 1452)

Baral, Chief of Compliance (Secret Lair Drop #1447)
Battle of Wits (Secret Lair Drop #1446)
Brion Stoutarm (Secret Lair Drop #1450)
Fynn, the Fangbearer (Secret Lair Drop #1449)
Marchesa, the Black Rose (Secret Lair Drop #1452)
Pack Rat (Secret Lair Drop #1448)
Samut, Voice of Dissent (Secret Lair Drop #1451)
Silence (Secret Lair Drop #1445)
Sisay, Weatherlight Captain (Secret Lair Drop #1444)

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