You can target any number of your Fiend monsters that are banished or in your GY, up to the number of Destiny Board and or Spirit Message cards you control; add them to your hand. You can send this card from your Spell & Trap Zone to the GY; place 1 Spirit Message card from your hand, Deck, or GY in your Spell & Trap Zone. (This is treated as being placed by the effect of Destiny Board .) You can only use 1 Sentence of Doom effect per turn, and only once that turn.