Added another test.

Mage.Sets/src/mage/sets/gatecrash/MimingSlime.java

@@ -52,8 +52,6 @@ public class MimingSlime extends CardImpl {
         super(ownerId, 126, "Miming Slime", Rarity.UNCOMMON, new CardType[]{CardType.SORCERY}, "{2}{G}");
         this.expansionSetCode = "GTC";
 
-        this.color.setGreen(true);
-
         // Put an X/X green Ooze creature token onto the battlefield, where X is the greatest power among creatures you control.
         this.getSpellAbility().addEffect(new MimingSlimeEffect());
     }

Mage.Sets/src/mage/sets/gatecrash/OozeFlux.java

@@ -54,8 +54,6 @@ public class OozeFlux extends CardImpl {
         super(ownerId, 128, "Ooze Flux", Rarity.RARE, new CardType[]{CardType.ENCHANTMENT}, "{3}{G}");
         this.expansionSetCode = "GTC";
 
-        this.color.setGreen(true);
-
         // {1}{G}, Remove one or more +1/+1 counters from among creatures you control: Put an X/X green Ooze creature token onto the battlefield, where X is the number of +1/+1 counters removed this way.
         Ability ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, new OozeFluxCreateTokenEffect(new OozeToken()),new ManaCostsImpl("{1}{G}"));
         ability.addCost(new RemoveVariableCountersTargetCost(new FilterControlledCreaturePermanent("creatures you control"), CounterType.P1P1, "one or more", 1));
@@ -74,7 +72,7 @@ public class OozeFlux extends CardImpl {
 
 class OozeFluxCreateTokenEffect extends OneShotEffect {
 
-    private Token token;
+    private final Token token;
 
     public OozeFluxCreateTokenEffect(Token token) {
         super(Outcome.PutCreatureInPlay);

Mage.Tests/src/test/java/org/mage/test/cards/abilities/activated/PutOntoBattlefieldTest.java

@@ -0,0 +1,51 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.mage.test.cards.abilities.activated;
+
+import mage.constants.PhaseStep;
+import mage.constants.Zone;
+import mage.game.permanent.Permanent;
+import org.junit.Assert;
+import org.junit.Test;
+import org.mage.test.serverside.base.CardTestPlayerBase;
+
+/**
+ *
+ * @author LevelX2
+ */
+
+public class PutOntoBattlefieldTest extends CardTestPlayerBase {
+
+    /**
+     * Tests to put a token onto the battlefield
+     */
+    @Test
+    public void testOozeFlux() {
+        // Enchantment
+        // {1}{G}, Remove one or more +1/+1 counters from among creatures you control: Put an X/X green Ooze creature token onto the battlefield, where X is the number of +1/+1 counters removed this way.
+        addCard(Zone.BATTLEFIELD, playerA, "Ooze Flux");
+        // Trample
+        // Kalonian Hydra enters the battlefield with four +1/+1 counters on it.
+        // Whenever Kalonian Hydra attacks, double the number of +1/+1 counters on each creature you control.
+        addCard(Zone.BATTLEFIELD, playerA, "Kalonian Hydra");
+        addCard(Zone.BATTLEFIELD, playerA, "Forest", 2);
+
+        activateAbility(1, PhaseStep.PRECOMBAT_MAIN, playerA, "{1}{G},");
+        setChoice(playerA, "X=2"); // Remove how many
+        setChoice(playerA,"Kalonian Hydra");
+        setChoice(playerA, "X=2"); // Remove from Hydra
+
+        setStopAt(1, PhaseStep.BEGIN_COMBAT);
+        execute();
+
+        assertPowerToughness(playerA, "Kalonian Hydra", 2, 2);
+        assertPermanentCount(playerA, "Ooze", 1);
+        assertPowerToughness(playerA, "Ooze", 2, 2);
+
+    }
+
+    
+}

Mage.Tests/src/test/java/org/mage/test/player/TestPlayer.java

@@ -502,6 +502,18 @@ public class TestPlayer extends ComputerPlayer {
         return super.announceXCost(min, max, message, game, ability, null);
     }
 
+    @Override
+    public int getAmount(int min, int max, String message, Game game) {
+        if (!choices.isEmpty()) {
+            if (choices.get(0).startsWith("X=")) {
+                int xValue = Integer.parseInt(choices.get(0).substring(2));
+                choices.remove(0);
+                return xValue;
+            }
+        }
+        return super.getAmount(min, max, message, game);    
+    }
+
     protected Permanent findPermanent(FilterPermanent filter, UUID controllerId, Game game) {
         List<Permanent> permanents = game.getBattlefield().getAllActivePermanents(filter, controllerId, game);
         if (permanents.size() > 0) {