Blue Sky Knights, Drum Bunker Dragon DZ-TB01/023 RR

Call Cost [Pay one gauge & put the top card of the deck or a card from drop into this card's buddy soul] [AUTO]:If your vanguard is "The Mighty Sun Fighter, Gao Mikado", this cost is reduced by [Counter Blast (1)]. When this unit is placed on (RC), COST [Counter Blast (1)], and draw a card. [AUTO](RC)1/Turn:When this unit attacks a grade 3 or greater unit, Soul Charge (1) or put the top card of your deck into the gauge face down. [CONT]:[Soulguard] (When this unit would leave (RC), you can leave it on a (RC) by putting a card from this unit's Buddy Soul into drop)