Conzipe, verdut, vladutu99 - 1
Everyone else - The additive identity -_-
Solution to last week's puzzle (which was left unsolved in its current form):
Normal Summon Night Assailant.
Synchro Summon Brionac, Dragon of the Ice Boundary by tuning Dark Resonator and Night Assailant.
Activate Dark World Dealings, discard Night Assailant, target Night Assailant, and chain Forced Requisition.
Activate Black Garden.
Activate Spell Reproduction by discarding Premature Burial and Book of Taiyou, and target Mass Driver.
Activate Mass Driver.
Repeat the following steps until the opponent's life points reach zero:
Activate Brionac, Dragon of the Ice Boundary, discard Night Assailant, and target Beiige, Vanguard of Dark World, then target Night Assailant.
Activate Mass Driver by tributing Rose Token. (2000/Opponent's life points - 400)