Some questions about Angelic Burster

1. Correct me if I'm wrong. Self-buffed, the critical chance of an angelic burster is 35%, and the min crit damage is 165% and max is 210%. How can I achieve 100% crit chance without sacrificing weapon and sub-weapon potential (other than 5% ring and decent SE)? Does additional pot in every equipment types have crit % or is it still only weapons?

2. What type of potential does emblem have? ( Weapon or normal )

3. Does Power Transfer/Iron Lotus ignores percentages of 1/1 attacks or am I reading it wrong?

Thank you all!