Schwarzschild Dragon

(This ability is active if you have four or more damage):[ 3 & Choose a card named "Schwarzschild Dragon" from your hand, and discard it]Choose up to three of your opponent's rear-guards, lock them, and this unit gets +10000/ +1 until end of turn. (The locked card is turned face down, and cannot do anything. It turns face up at end of the owner's turn.) : 1When this unit is placed on , you may pay the cost. If you do, look at up to five cards from the top of your deck, search for up to one "Schwarzschild Dragon" from among them, reveal it to your opponent, put it into your hand, and shuffle your deck. :If you have a card named "Gravity Collapse Dragon" in your soul, this unit gets +1000.