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That's exactly what happened. I didn't find any combat magic or a red orb; even a cloak would have helped. I made a mistake – I should have spent more time gathering resources and upgrading the angels before heading to the center. But I was tempted by the teapot first, and then by the Sword of Justice in the central treasure, and things went downhill from there... I was defeated by an implosion.
I tried to jump around, but it was pointless after that.
Thanks for the game!