[BOSH] Tuning Magician

You can only use the (1) effect of “Tuning Magician” once per turn.
(1) If this card is in your hand or Graveyard while there is a “Magician” card in your Pendulum Zone: You can Special Summon this card, but banish it if it leaves the field.
(2) If this card is Normal or Special Summoned: Your opponent gains 400 LP, and if they do, you take 400 damage.

You cannot Normal or Special Summon this card if there is a Spell/Trap Card in your Graveyard.
(1) When your take battle damage while there are no Spell/Trap Cards in your Graveyard: You can Special Summon this card from your hand. During the turn this card is Summoned by this effect, it cannot be destroyed by battle or card effect.