Cardfight!! Vanguard:
Rules Updates
[Information on 23rd April 2015]
- When a player do not have any cards in their [V] (There is both NO cards as the Vanguard and No cards in the soul), that player will lose the game.
- If the current Vanguard leaves the [V] by a card effect or by some method/ability, choose a card in your soul, and Ride it. That card will become your new Vanguard.
Source: http://cf-vanguard.com/wp/wp-content/uploads/vgd_rule_150423.pdf
