Dymamic Values, Sigil of Distinction as example, tooltip is generated badly

Mage/src/mage/abilities/dynamicvalue/DynamicValue.java

@@ -0,0 +1,11 @@
+package mage.abilities.dynamicvalue;
+
+import mage.abilities.Ability;
+import mage.game.Game;
+
+import java.io.Serializable;
+
+public interface DynamicValue extends Serializable {
+    int calculate(Game game, Ability sourceAbility);
+    DynamicValue clone();
+}