Mysterious Girl, Illyasviel (FS/S64-E082SP SP) [Fate/Stay Night [Heaven's Feel]]

[CONT] If "Mad Warrior's Howl, Berserker" is in your clock, this card gets -1 level while in your hand. [CONT] This card gets +500 power for each of your other "Master" or "Servant" characters. [AUTO] [Put 1 card from your hand into your waiting room] When this card is placed on the stage from your hand, you may pay the cost. If you do, put the bottom card of your clock into your stock.