diff --git a/forge-gui/res/cardsfolder/s/sentinels_mark.txt b/forge-gui/res/cardsfolder/s/sentinels_mark.txt
index 5a6c80a41b2..db9d0ffe5e8 100644
--- a/forge-gui/res/cardsfolder/s/sentinels_mark.txt
+++ b/forge-gui/res/cardsfolder/s/sentinels_mark.txt
@@ -5,6 +5,7 @@ K:Flash
 K:Enchant creature
 A:SP$ Attach | Cost$ 1 W | ValidTgts$ Creature | AILogic$ Pump
 S:Mode$ Continuous | Affected$ Creature.EnchantedBy | AddPower$ 1 | AddToughness$ 2 | AddKeyword$ Vigilance | Description$ Enchanted creature gets +1/+2 and has vigilance.
-T:Mode$ ChangesZone | ValidCard$ Card.Self | Origin$ Any | Destination$ Battlefield | Execute$ TrigPump | Condition$ Main1,Main2 | TriggerDescription$ When CARDNAME enters the battlefield, if you cast it during your main phase, enchanted creature gains lifelink until end of turn.
+T:Mode$ ChangesZone | ValidCard$ Card.Self | Origin$ Any | Destination$ Battlefield | Execute$ TrigPump | PlayerTurn$ True | CheckSVar$ X | SVarCompare$ GE1 | TriggerDescription$ When CARDNAME enters the battlefield, if you cast it during your main phase, enchanted creature gains lifelink until end of turn.
 SVar:TrigPump:DB$ Pump | Defined$ Enchanted | KW$ Lifelink
+SVar:X:Count$IfMainPhase.1.0
 Oracle:Flash\nEnchant creature\nEnchanted creature gets +1/+2 and has vigilance.\nAddendum — When Sentinel's Mark enters the battlefield, if you cast it during your main phase, enchanted creature gains lifelink until end of turn.