Transforming attack is a newly introduced mechanic to the Souls series. To perform a transforming attack, one must press L1 immediately after any other attack, roll or quickstep. Doing so will cause your currently equipped right-hand weapon to attack while transforming into it's other state. Transforming attacks can be chained as many times as your stamina will allow you. Your right-hand weapon will remain in which ever state you transformed to during the attack.
// Press L1 while attacking, rolling or quickstepping to transform the right-hand weapon while attacking.//