[GNT] implemented Inspired Sphinx

Mage/src/main/java/mage/abilities/dynamicvalue/common/OpponentsCount.java

@@ -0,0 +1,32 @@
+package mage.abilities.dynamicvalue.common;
+
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.game.Game;
+
+/**
+ * @author JayDi85
+ */
+public class OpponentsCount implements DynamicValue {
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        return game.getOpponents(sourceAbility.getControllerId()).size();
+    }
+
+    @Override
+    public OpponentsCount copy() {
+        return new OpponentsCount();
+    }
+
+    @Override
+    public String getMessage() {
+        return "number of opponents you have";
+    }
+
+    @Override
+    public String toString() {
+        return "1";
+    }
+}