Kagamine Len "Indigo Fox" (PD/S29-E096b U) [Hatsune Miku: Project DIVA F 2nd]

[AUTO] When this card attacks, choose one of your other {Music} characters, and until end of turn, that character gets +1 level and +X power. X is equal to 500 multiplied by the number of other characters you have with "Rin" or "Len" in its card name. [AUTO][CLOCK] Shift, Level 0 (At the beginning of your main phase, you may choose a blue card in your hand and this card in your clock, and exchange them)