[SLD] Implement Atreus, Impulsive Son

Mage/src/main/java/mage/util/validation/PartnerFatherAndSonValidator.java

@@ -0,0 +1,16 @@
+package mage.util.validation;
+
+import mage.abilities.keyword.PartnerFatherAndSonAbility;
+import mage.cards.Card;
+
+/**
+ * @author TheElk801
+ */
+public enum PartnerFatherAndSonValidator implements CommanderValidator {
+    instance;
+
+    @Override
+    public boolean checkPartner(Card commander1, Card commander2) {
+        return commander1.getAbilities().containsClass(PartnerFatherAndSonAbility.class);
+    }
+}