Ethereal Cadence, Lagrasse DZ-BT04/SR31 SR

[AUTO]:When this unit is placed on (RC), choose a grade 3 card with "Lianorn" in its card name from your ride deck, and you may reveal it. If you revealed a card, or have a grade 3 or greater vanguard with "Lianorn" in its card name, COST [Counter Blast (1)], look at the top seven cards of your deck, choose up to one card with "Lianorn" in its card name from among them, reveal it and put it into hand, and shuffle the deck. If you did not put a card, draw a card. [CONT](RC/GC):If your back row has two or more grade 1 or less rear-guards, this unit gets "Boost", and [Power]+5000/[Shield]+5000. (Active on opponent's turn too)