Motherly Role, Fern [Frieren: Beyond Journey's End]

[AUTO] When this card is placed on the stage from your hand, you may choose 1 of your characters with "Frieren" in its card name, and [STAND] it. [AUTO] When your other "Adventurer" or "Magic" character attacks, this card gets +X power until end of turn. X is equal to the number of other "Adventurer" or "Magic" characters you have ×500.