The Shirai Ryu character is the first card probably everyone who started the game has received. His basic attack is fast, whist blocking is a little slow, leaving him open to a counterattack. He is best combined with other Martial Artist characters, because of his passive ability, like Lin Kuei, Sub-Zero and Scorpion. At the early stage at the game, I found him very useful in Battle Mode when paired with Kung Lao Shaolin Master as he gains + 300% attack, health, toughness and recovery.
Attach Boost - 5% attack for Martial Artist teammates
Kunai - Attack: Medium damage
Clan Edge - Attack: High damage
Precision - Bonus Attack in percentage for all Shirai Ryu characters
Shirai Ryu Tradition - Bonus Health for all Shirai Ryu characters
Meditation - Bonus Recovery for all Shirai Ryu characters