Steel Baron Dragon, Spinomarquis

[AUTO]:When this unit is placed on (VC), look at the top seven cards of your deck, choose up to two <Dinodragon> from among them, call them to (RC), and shuffle the deck. [AUTO](VC):When this unit attacks a vanguard, [COST][Counter-Blast 1 & retire a <Dinodragon> rear-guard], draw a card, and this unit gets [Power] +10000 until end of that battle. Choose up to one <Dinodragon> from your hand, call it to (RC), and retire all of your opponent's rear-guards in the same column as that called unit.