diff --git a/forge-gui/res/editions/Secret Lair Drop Series.txt b/forge-gui/res/editions/Secret Lair Drop Series.txt
index 5db78949358..e42516e9ea0 100644
--- a/forge-gui/res/editions/Secret Lair Drop Series.txt	
+++ b/forge-gui/res/editions/Secret Lair Drop Series.txt	
@@ -612,6 +612,7 @@ ScryfallCode=SLD
 649 R Horned Sliver @Allen Williams
 650 R Manaweft Sliver @Trevor Claxton
 652 R Might Sliver @Jeff Miracola
+653 R Muscle Sliver @Richard Kane Ferguson
 654 R Predatory Sliver @Mathias Kollros
 655 R Quick Sliver @John Avon
 657 R Tempered Sliver @Mitchell Malloy