Snowflake of the Deep Sea, Ephemere

[AUTO](RC)[1/Turn]:When your other rear-guard is returned to hand during your turn, if you have a grade 3 or greater <Mermaid> vanguard, choose one of your units, and it gets [Power]+5000 until end of turn. [AUTO]:When this unit is returned to hand from (RC), if you have a grade 3 or greater vanguard with "Krysrain" in its card name, [COST][put a card with a different card name from this card from hand into soul], and draw a card.