When resolving Lava Golem’s effect during a Speed Duel where the controller takes 1000 damage during their Main Phase, I didn’t take any damage and I was met with a message that said “?-1: attempt to index a nil value.” This happened every turn I controlled it. I will attach a screenshot below.
Bug reproduction steps
Start a Speed Duel set to the Duel Links 12.15.2020 ban list, and summon Lava Golem. When the controller’s main phase comes the error should occur.
Screenshot OR error code
Instead of the message shown above I should have taken 1,000 damage.