Once per turn, during your Standby Phase: Take 1000 damage.
You can only use 1 of the following effects of "Dark Contract with the Yamimakai" per turn, and only once that turn. - During your Main Phase: You can target 1 "D/D" Pendulum Monster in your Graveyard; place it in your Pendulum Zone. - During your Main Phase: You can place 1 face-up "D/D" Pendulum Monster from your Extra Deck in your Pendulum Zone.