What you were expecting to happen, and what actually happened:
Description of Terra Wyrm indicates that 3 Gems are being exploded, when in reality it’s 3 Skulls.
How often does this happen? When did it begin happening?
Happens whenever Terra Wyrm’s skill is used.
Steps to make it happen again
Play a battle with Terra Wyrm in your troops, and trigger it. Observe what is being exploded.
It would be interesting to have a board with no skulls at all and cast Terra Wyrm to show this in action.
UPDATE: I was able to reproduce that situation using Anubite Warrior. The Terra Wyrm, indeed, explodes 3 skulls. A simple change in the wording of the spell should suffice.
Whoever can’t code for shit on the staff (or outside contractor) can’t be worth this bargain bin quality of work.
505 Games valued your company for a net worth of 4.5 million dollars.
Microtransactions at that level shouldn’t equate to a micro worth of QA assurance.
In fact, the next $10 season pass should be given for free to all your players who have accounts longer than a year old as to say thanks for helping us be acquired at that value despite all the head aches 90% of our new content brings due to zero of the money being applied to QA.