Shadowless Pokemon cards do not feature the drop shadow effect to the right of the character portrait
Some cards even have Overframe versions
If your life total is brought to 0 or less at the same time that a creature an opponent controls is dealt lethal damage, you lose the game before Massacre Wurm's last ability goes on the stack
Dark Driceratops
However, "Orichalcos Shunoros" weakened itself very quickly (because it lost ATK after it battled a monster, or if either "Orichalcos Aristeros" or "Orichalcos Dexia" battled an opposing monster), so as a very last resort, if "Shunoros" was destroyed, Dartz Summoned his infinitely strong "Divine Serpent Geh", but if that monster was destroyed, he automatically lost
Then, Im assuming the next move is to enter the boy for the regional championships, have him clear up, and then vicariously live off his glory