[AUTO]:When this unit is placed by riding from "Argo Siren, Iremia", [COST][reveal a grade 3 card with "Argo Siren" in its card name from ride deck], search your deck for up to one Tiding card, reveal it and put it into hand, and shuffle the deck.
[CONT](RC):If you have a vanguard with "Argo Siren" in its card name, this unit gets "Boost".