During either player's Damage Step, if a Beast-Warrior-Type "Bujin" monster you control battles an opponent's monster: You can banish this card from your Graveyard; that monster you control gains ATK equal to the current ATK of the opponent's monster it is battling until the end of the Damage Step, and if it does, all battle damage your opponent takes from that battle is halved. You can only use this effect of "Bujingi Sinyou" once per turn.
Allows your Bujin monster to get over any monster by battle.
-Since it activates from your graveyard your opponent could see it coming and not attack your Bujin monster, destroying it via effect instead.
You can activate Bujingi Sinyou offensively when your Bujin monster declares an attack or defensively when your opponent attacks you.
Bujingi monsters are specifically made to support Bujin monsters and can only activate their effects when there is a face-up Beast-Warrior Bujin monster. Here are some Bujin monsters you can use. Bujin Yamato provides you with an excellent way to search and send Bujingi monsters to the graveyard.