diff --git a/Mage.Sets/src/mage/cards/f/Flash.java b/Mage.Sets/src/mage/cards/f/Flash.java
index 2fd40a12b1c..f7a1fcb359d 100644
--- a/Mage.Sets/src/mage/cards/f/Flash.java
+++ b/Mage.Sets/src/mage/cards/f/Flash.java
@@ -101,7 +101,7 @@ class FlashEffect extends OneShotEffect {
             if (card != null) {
                 card.putOntoBattlefield(game, Zone.HAND, source.getSourceId(), source.getControllerId());
                 
-                ManaCosts<ManaCost> reducedCost = CardUtil.removeVariableManaCost(CardUtil.reduceCost(card.getManaCost(), 2));
+                ManaCosts<ManaCost> reducedCost = ManaCosts.removeVariableManaCost(CardUtil.reduceCost(card.getManaCost(), 2));
                 StringBuilder sb = new StringBuilder("Pay ").append(reducedCost.getText()).append('?');
                 if (player.chooseUse(Outcome.Benefit, sb.toString(), source, game)) {
                     reducedCost.clearPaid();
diff --git a/Mage.Sets/src/mage/cards/t/Tariff.java b/Mage.Sets/src/mage/cards/t/Tariff.java
index a11d11ec6b9..df126027694 100644
--- a/Mage.Sets/src/mage/cards/t/Tariff.java
+++ b/Mage.Sets/src/mage/cards/t/Tariff.java
@@ -33,6 +33,8 @@ import java.util.UUID;
 import mage.MageObject;
 import mage.abilities.Ability;
 import mage.abilities.costs.mana.ManaCost;
+import mage.abilities.costs.mana.ManaCostImpl;
+import mage.abilities.costs.mana.ManaCosts;
 import mage.abilities.effects.OneShotEffect;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -113,7 +115,7 @@ class TariffEffect extends OneShotEffect {
         Permanent creatureToPayFor = chooseOnePermanent(game, player, creatures);
 
         if (creatureToPayFor != null) {
-            ManaCost manaCost = CardUtil.removeVariableManaCost(creatureToPayFor.getManaCost());
+            ManaCosts manaCost = ManaCosts.removeVariableManaCost(creatureToPayFor.getManaCost());
             String message = new StringBuilder("Pay ").append(manaCost.getText()).append(" (otherwise sacrifice ")
                     .append(creatureToPayFor.getName()).append(")?").toString();
             if (player.chooseUse(Outcome.Benefit, message, source, game)) {