Stealth Rogue of Liquidation, Sadatsugu

:When this unit attacks a vanguard, if you have a vanguard with "Shiranui" in its card name, this unit gets +2000 until end of that battle. : 1 At the end of the battle that your other rear-guard attacked the vanguard, you may pay the cost. If you do, retire the unit that attacked, draw a card, and this unit loses this ability until end of turn.