fix Minion of the Wastes multiple replacement (related to f252525c)

Mage.Sets/src/mage/cards/d/Dracoplasm.java

@@ -118,6 +118,7 @@ class DracoplasmEffect extends ReplacementEffectImpl {
         }
         ContinuousEffect effect = new SetBasePowerToughnessSourceEffect(power, toughness, Duration.WhileOnBattlefield);
         game.addEffect(effect, source);
+        this.discard(); // prevent multiple replacements e.g. on blink
         return false;
     }
 }

Mage.Sets/src/mage/cards/m/MinionOfTheWastes.java

@@ -99,6 +99,7 @@ class MinionOfTheWastesEffect extends ReplacementEffectImpl {
                 payAmount, payAmount, Duration.WhileOnBattlefield
         ), source);
         creature.addInfo("life paid", CardUtil.addToolTipMarkTags("Life paid: " + payAmount), game);
+        this.discard(); // prevent multiple replacements e.g. on blink
         return false;
     }
 }

Mage.Sets/src/mage/cards/n/NamelessRace.java

@@ -123,6 +123,7 @@ class NamelessRaceEffect extends ReplacementEffectImpl {
                 payAmount, payAmount, Duration.WhileOnBattlefield
         ), source);
         creature.addInfo("life paid", CardUtil.addToolTipMarkTags("Life paid: " + payAmount), game);
+        this.discard(); // prevent multiple replacements e.g. on blink
         return false;
     }
 }

Mage.Sets/src/mage/cards/w/WoodElemental.java

@@ -107,6 +107,7 @@ class WoodElementalEffect extends ReplacementEffectImpl {
             }
         }
         game.addEffect(new SetBasePowerToughnessSourceEffect(value, value, Duration.WhileOnBattlefield), source);
+        this.discard(); // prevent multiple replacements e.g. on blink
         return false;
     }
 }

Mage.Tests/src/test/java/org/mage/test/cards/single/tmp/MinionOfTheWastesTest.java

@@ -32,4 +32,26 @@ public class MinionOfTheWastesTest extends CardTestPlayerBase {
         assertPowerToughness(playerA, minion, 3, 3);
     }
 
+    @Test
+    public void testFlicker() {
+        addCard(Zone.BATTLEFIELD, playerA, "Scrubland", 7);
+        addCard(Zone.HAND, playerA, minion);
+        addCard(Zone.HAND, playerA, "Cloudshift"); // flicker
+
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, minion);
+        setChoice(playerA, "X=3");
+
+        castSpell(1, PhaseStep.POSTCOMBAT_MAIN, playerA, "Cloudshift", minion);
+        setChoice(playerA, "X=2");
+
+        setStrictChooseMode(true);
+        setStopAt(2, PhaseStep.END_TURN);
+        execute();
+
+        assertLife(playerA, 15);
+        assertPowerToughness(playerA, minion, 2, 2);
+    }
+
+    // Note similar cards: Wood Elemental, Nameless Race, Dracoplasm
+
 }