diff --git a/forge-gui/res/blockdata/blocks.txt b/forge-gui/res/blockdata/blocks.txt
index d4574f21b41..3db02878fcb 100644
--- a/forge-gui/res/blockdata/blocks.txt
+++ b/forge-gui/res/blockdata/blocks.txt
@@ -82,4 +82,5 @@ Ravnica Allegiance, 3/6/RNA, RNA
 War of the Spark, 3/6/WAR, WAR
 Modern Horizons, 3/6/WAR, MH1
 Core Set 2020, 3/6/M20, M20
-Throne of Eldraine, 3/6/ELD, ELD
\ No newline at end of file
+Throne of Eldraine, 3/6/ELD, ELD
+Theros Beyond Death, 3/6/THB, THB
\ No newline at end of file
diff --git a/forge-gui/res/blockdata/printsheets.txt b/forge-gui/res/blockdata/printsheets.txt
index c4a4858616f..918726e8072 100644
--- a/forge-gui/res/blockdata/printsheets.txt
+++ b/forge-gui/res/blockdata/printsheets.txt
@@ -1586,4 +1586,15 @@ Korvold, Fae-Cursed King
 Syr Gwyn, Hero of Ashvale
 Arcane Signet
 Tome of Legends
-Command Tower
\ No newline at end of file
+Command Tower
+
+[THB Secret Cards]
+Athreos, Shroud-Veiled
+Elspeth, Undaunted Hero
+Eidolon of Inspiration
+Elspeth's Devotee
+Sunlit Hoplite
+Ashiok, Sculptor of Fears
+Swimmer in Nightmares
+Mindwrack Harpy
+Ashiok's Forerunner
\ No newline at end of file
diff --git a/forge-gui/res/editions/Theros Beyond Death.txt b/forge-gui/res/editions/Theros Beyond Death.txt
index 892ae22467a..f5ada509333 100644
--- a/forge-gui/res/editions/Theros Beyond Death.txt	
+++ b/forge-gui/res/editions/Theros Beyond Death.txt	
@@ -5,7 +5,7 @@ Name=Theros: Beyond Death
 MciCode=thb
 Type=Expansion
 BoosterCovers=5
-Booster=10 Common, 3 Uncommon, 1 RareMythic, 1 BasicLand
+Booster=10 Common:!fromSheet("THB Secret Cards"), 3 Uncommon:!fromSheet("THB Secret Cards"), 1 RareMythic:!fromSheet("THB Secret Cards"), 1 BasicLand
 Prerelease=6 Boosters, 1 RareMythic+
 
 [cards]