Popular clans are getting new cards from the 9th set, having them focused on crossriding on Cards with Leader in it. Meaning cards with that specified word in it, you cannot use that unit to attack if you have a unit from a different clan on the field. Cards that are given the crossride is:
Incandescent Lion, Blon Ezel > Radiant Lion, Platinum Ezel
Dragonic Kaiser Vermillion > Dragonic Kaiser Vermillion The Blood
CEO Amaterasu > Goddess of the Sun, Amaterasu
Blue Storm Dragon, Maelstrom > Blue Storm Supreme Dragon, Glory Maelstrom
Beast Deity, Azure Dragon > Super Beast Deity, Ilminal Dragon
Spectral Duke Dragon > Spectral Duke Overlord (actual name unknown)