Interlude of the Rain, Murasame Kai (KC/S42-E079 R) [KanColle: Arrival! Reinforcement Fleets from Europe!]

[AUTO] When you use this card's "Backup", choose one of your characters in battle, and that character gets +X power until end of turn. X is equal to 500 multiplied by the number of "Destroyer" characters you have. [ACT] [COUNTER] Backup 500, Level 1 [(1) Put this card from your hand into your waiting room] (Choose one of your characters that is being frontal attacked, and that character gets +500 power until end of turn)