fix usable zone logic for abilities that function from other zones (#12446)

* remove superfluous constructor params

* fix Syrix, Carrier of the Flame

* standardize Zone = Battlefield

* rename class

* remove redundant class

* add docs

* adjustment

Mage/src/main/java/mage/abilities/TriggeredAbilityImpl.java

@@ -430,6 +430,12 @@ public abstract class TriggeredAbilityImpl extends AbilityImpl implements Trigge
         return this;
     }
 
+    /**
+     * For triggered abilities that function from the battlefield that must trigger when the source permanent dies
+     * and/or for any other events that happen simultaneously to the source permanent dying.
+     * (Similar logic must be used for any leaves-the-battlefield, but this method assumes to graveyard only.)
+     * NOTE: If your ability functions from another zone (not battlefield) then must use standard logic, not this.
+     */
     public static boolean isInUseableZoneDiesTrigger(TriggeredAbility source, GameEvent event, Game game) {
         // Get the source permanent of the ability
         MageObject sourceObject = null;