You can use only one effect among the (2)nd and (3)rd effects with this card’s name per turn, and only once that turn.
(1) If your “Senka” monster battles, your opponent cannot activate Spell or Trap Cards until the end of the Damage Step.
(2) At the start of your opponent’s Battle Phase, if this card is face-up in your Spell & Trap Zone: You can send this card to the GY; for the rest of this turn, your opponent cannot target “Senka” monsters for attacks.
(3) When your opponent’s monster declares an attack: You can banish this card from your GY; Special Summon 1 “Senka” monster from your Deck.