[AUTO]:[Counter Blast (1)] When this unit is placed on (VC) or (RC), if you have a «Murakumo» vanguard, you may pay the cost. If you do, search your deck up to one card named "Stealth Beast, Million Rat", call it to (RC), and shuffle your deck, and at the beginning of the end phase of that turn, put that unit on the bottom of your deck.
If you find one, many other will follow. Tightly packed, in the dark.