diff --git a/Mage.Sets/src/mage/cards/m/MetalworkColossus.java b/Mage.Sets/src/mage/cards/m/MetalworkColossus.java
index 2f1ccbd115..aa3251ee3f 100644
--- a/Mage.Sets/src/mage/cards/m/MetalworkColossus.java
+++ b/Mage.Sets/src/mage/cards/m/MetalworkColossus.java
@@ -6,8 +6,12 @@ import mage.abilities.SpellAbility;
 import mage.abilities.common.SimpleActivatedAbility;
 import mage.abilities.common.SimpleStaticAbility;
 import mage.abilities.costs.common.SacrificeTargetCost;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
 import mage.abilities.effects.common.ReturnSourceFromGraveyardToHandEffect;
 import mage.abilities.effects.common.cost.CostModificationEffectImpl;
+import mage.abilities.effects.common.cost.SpellCostReductionSourceEffect;
+import mage.abilities.hint.ValueHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.*;
@@ -19,7 +23,10 @@ import mage.game.Game;
 import mage.game.permanent.Permanent;
 import mage.target.common.TargetControlledPermanent;
 import mage.util.CardUtil;
+import org.checkerframework.checker.nullness.qual.NonNull;
 
+import java.util.List;
+import java.util.Objects;
 import java.util.UUID;
 
 /**
@@ -27,6 +34,7 @@ import java.util.UUID;
  */
 public final class MetalworkColossus extends CardImpl {
 
+    private static final String message = "Total mana value of noncreature artifacts you control";
     private static final FilterControlledPermanent filter = new FilterControlledArtifactPermanent("artifacts");
 
     public MetalworkColossus(UUID ownerId, CardSetInfo setInfo) {
@@ -35,8 +43,13 @@ public final class MetalworkColossus extends CardImpl {
         this.power = new MageInt(10);
         this.toughness = new MageInt(10);
 
-        // Metalwork Colossus costs {X} less to cast, where X is the total converted mana cost of noncreature artifacts you control.
-        this.addAbility(new SimpleStaticAbility(Zone.ALL, new MetalworkColossusCostReductionEffect()));
+        // This spell costs {X} less to cast, where X is the total mana value of noncreature artifacts you control.
+        DynamicValue xValue = new totalNonCreatureArtifactManaValue();
+        this.addAbility(new SimpleStaticAbility(
+                        Zone.ALL,
+                        new SpellCostReductionSourceEffect(xValue)
+                ).addHint(new ValueHint(message, xValue))
+        );
 
         // Sacrifice two artifacts: Return Metalwork Colossus from your graveyard to your hand.
         this.addAbility(new SimpleActivatedAbility(Zone.GRAVEYARD, new ReturnSourceFromGraveyardToHandEffect(), new SacrificeTargetCost(new TargetControlledPermanent(2, filter))));
@@ -52,40 +65,49 @@ public final class MetalworkColossus extends CardImpl {
     }
 }
 
-class MetalworkColossusCostReductionEffect extends CostModificationEffectImpl {
+class totalNonCreatureArtifactManaValue implements DynamicValue {
 
+    private static final String message = "total mana value of noncreature artifacts you control";
     private static final FilterPermanent filter = new FilterControlledArtifactPermanent("noncreature artifacts you control");
 
     static {
         filter.add(Predicates.not(CardType.CREATURE.getPredicate()));
     }
 
-    MetalworkColossusCostReductionEffect() {
-        super(Duration.Custom, Outcome.Benefit, CostModificationType.REDUCE_COST);
-        staticText = "this spell costs {X} less to cast, where X is the total mana value of noncreature artifacts you control";
+    totalNonCreatureArtifactManaValue() {
+        // Nothing to do.
     }
 
-    MetalworkColossusCostReductionEffect(final MetalworkColossusCostReductionEffect effect) {
-        super(effect);
+    private totalNonCreatureArtifactManaValue(final totalNonCreatureArtifactManaValue dynamicValue) {
+        super();
     }
 
     @Override
-    public boolean apply(Game game, Ability source, Ability abilityToModify) {
+    public DynamicValue copy() {
+        return new totalNonCreatureArtifactManaValue(this);
+    }
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
         int totalCMC = 0;
-        for (Permanent permanent : game.getBattlefield().getActivePermanents(filter, source.getControllerId(), source, game)) {
+        List<Permanent> permanents = game.getBattlefield().getActivePermanents(
+                filter,
+                sourceAbility.getControllerId(),
+                sourceAbility,
+                game);
+        for (Permanent permanent : permanents) {
             totalCMC += permanent.getManaValue();
         }
-        CardUtil.reduceCost(abilityToModify, totalCMC);
-        return true;
+        return totalCMC;
     }
 
     @Override
-    public boolean applies(Ability abilityToModify, Ability source, Game game) {
-        return abilityToModify.getSourceId().equals(source.getSourceId()) && (abilityToModify instanceof SpellAbility);
+    public String getMessage() {
+        return message;
     }
 
     @Override
-    public MetalworkColossusCostReductionEffect copy() {
-        return new MetalworkColossusCostReductionEffect(this);
+    public String toString() {
+        return "X";
     }
 }