Board Thread:My Singing Monsters Forum/@comment-35732694-20191116162046/@comment-31797469-20191122123722

That's a very interesting rule framework. I'd add two more rules:

Rule 5: No two Magical Islands share all three Natural elements.

Rule 6: (This rule follows automatically from 5 and 2) Two consecutive Islands only share one Natural element.

If we list the possible Islands like this: Where branches depend on earlier released islands:
 * 2nd Magical Island (Using FakeMagicalElement2 (Mist).png as placeholder)
 * 3rd Magical Island (Using as placeholder)
 * 4th Magical Island' (Using as placeholder)
 * FakeMagicalElement2 (Mist).png
 * FakeMagicalElement2 (Mist).png
 * FakeMagicalElement2 (Mist).png
 * FakeMagicalElement2 (Mist).png
 * FakeMagicalElement2 (Mist).png
 * FakeMagicalElement2 (Mist).png
 * FakeMagicalElement2 (Mist).png
 * FakeMagicalElement2 (Mist).png