diff --git a/forge-game/src/main/java/forge/game/cost/CostAdjustment.java b/forge-game/src/main/java/forge/game/cost/CostAdjustment.java
index 3ead5f27d1b..c384212499c 100644
--- a/forge-game/src/main/java/forge/game/cost/CostAdjustment.java
+++ b/forge-game/src/main/java/forge/game/cost/CostAdjustment.java
@@ -337,15 +337,12 @@ public class CostAdjustment {
             return;
         }
 
-        int value = 0;
-        if (StringUtils.isNumeric(amount)) {
-            value = Integer.parseInt(amount);
-        } else {
-            if ("Min3".equals(amount)) {
-                int cmc = manaCost.getConvertedManaCost();
-                if (cmc < 3) {
-                    value = 3 - cmc;
-                }
+        int value = Integer.parseInt(amount);
+
+        if (staticAbility.hasParam("RaiseTo")) {
+            int cmc = manaCost.getConvertedManaCost();
+            if (cmc < value) {
+                value = Integer.parseInt(amount) - cmc;
             }
         }
 
diff --git a/forge-gui/res/cardsfolder/t/trinisphere.txt b/forge-gui/res/cardsfolder/t/trinisphere.txt
index 6324a0c5bdb..9d938295bf4 100644
--- a/forge-gui/res/cardsfolder/t/trinisphere.txt
+++ b/forge-gui/res/cardsfolder/t/trinisphere.txt
@@ -1,7 +1,7 @@
 Name:Trinisphere
 ManaCost:3
 Types:Artifact
-S:Mode$ SetCost | ValidCard$ Card | Type$ Spell | Amount$ Min3 | CheckSVar$ X | SVarCompare$ EQ1 | Description$ As long as CARDNAME is untapped, each spell that would cost less than three mana to cast costs three mana to cast.
+S:Mode$ SetCost | ValidCard$ Card | Type$ Spell | Amount$ 3 | RaiseTo$ True | CheckSVar$ X | SVarCompare$ EQ1 | Description$ As long as CARDNAME is untapped, each spell that would cost less than three mana to cast costs three mana to cast.
 SVar:X:Count$Valid Card.Self+untapped
 AI:RemoveDeck:Random
 SVar:NonStackingEffect:True