Heavy Corrosion Disconnection, Gravell & Olgulus

:When this unit is placed on from hand other than during the battle phase, perform one of the following. ・ 1, reveal the top card of your deck, put it into hand, if you revealed a trigger card, choose one of your opponent's rear-guards, and retire it. ・ 3, look at the top seven cards of your deck, choose up to one order card without Regalis Piece from among them, reveal it and put it into hand, and shuffle the deck. :When this unit attacks, if your opponent's vanguard is grade 3 or greater, this unit gets +5000 until end of that battle. If you have a vanguard with only one clan, it gets +5000 until end of that battle if your opponent's vanguard is grade 2 or greater instead of grade 3 or greater.