Am I just stupid or is the new quiz with Darkstorm Dragon impossible? It seems to me like they forgot that if Symbols of Duty goes poof, so does Darkstorm Dragon, preventing you from attacking the now-500 Gemini Soldier for that 2200 damage you need.
First Summon Goggle Golem the equip Gemini Booster on him. Then use Symbol of Duty to select Darkstorm Dragon. Use Gemini Booster on Gemini Soldier. Destroying Sword of the Soul-Eater (because Gemini Soldier isn't a normal monster anymore). Then attack Gemini Soldier FTW ✌