22 cards where the set is “sld” and ((the collector number >= 1335 and the collector number <= 1351) or the collector number is “731” or the collector number is “1387” or the collector number is “1388” or the collector number is “1388a” or the collector number is …

Angel (Secret Lair Drop #1340)
Angel of Finality (Secret Lair Drop #1342)
Angel of the Ruins (Secret Lair Drop #1343)
Archangel of Thune (Secret Lair Drop #1337)
Arden Angel (Secret Lair Drop #1344)
Breathkeeper Seraph (Secret Lair Drop #1345)
Brisela, Voice of Nightmares (Secret Lair Drop #1336b)
Brisela, Voice of Nightmares (Secret Lair Drop #1388b)
Bruna, the Fading Light (Secret Lair Drop #1336)
Bruna, the Fading Light (Secret Lair Drop #1388)
Commander's Plate (Secret Lair Drop #1339)
Court of Grace (Secret Lair Drop #1338)
Dawnbreak Reclaimer (Secret Lair Drop #1346)
Gisela, the Broken Blade (Secret Lair Drop #1335)
Gisela, the Broken Blade (Secret Lair Drop #1387)
Plains (Secret Lair Drop #1348)
Plains (Secret Lair Drop #1349)
Plains (Secret Lair Drop #1350)
Plains (Secret Lair Drop #1351)
Sigarda's Aid (Secret Lair Drop #731)
Spirit (Secret Lair Drop #1341)
Valkyrie Harbinger (Secret Lair Drop #1347)

Though this query has ended, its relics still slumber in New Argive.