Hidden within the jewel is an unparalleled lightning that leads to devastation.
:When this unit is placed on 
or put on 
, choose up to one grade 4 card from your hand, and reveal it. If you revealed a card, or your vanguard is grade 4, perform one of the following according to the circle this unit is on.‐Choose one of your opponent's rear-guards, retire it, and this unit gets 
+5000 until end of turn.‐This unit gets 
+15000 until end of that battle.:When this card is discarded from hand while riding a grade 3 from the ride deck or paying the cost for 
, draw a card.