I should of known there’d be a two-headed dragon! I should of known there’d be a two-headed dragon! There’s a reason I said it twice.
The pack cover features The☆Lugh and what appears to be an evolved version of his The☆Dragias, his ace monster.
The advertisement from V Jump explains that the set contains many cards from Go Rush!!, but it chiefly focuses on the powerful Dragons used by The☆Lugh
Source: V Jump
