Dragon Shiryu is a defensive bruiser that mixes protection and counter-pressure. At max skill, Dragon Shield - Awakened can guard up to 3 allies, block one direct hit for each protected target, and grant Shiryu 70% P.ATK for 4 turns when a block is triggered. Dragon Soul adds a 50% chance to completely negate the blocked damage, increasing his reliability as a bodyguard.
His AoE from Rising Dragon Punch scales better against high-HP enemies, so he can contribute damage while covering fragile teammates. For beginners and budget rosters, this is valuable in story and early, really early PvE and PvP. In endgame play he is usually outclassed by newer protectors with stronger utility.