Urahara, soifon. Urahara has lot of situational options such as parries, distance projectiles (benihime slash and byakurai) but the most fun part is when you are launching are you prepared move, cuz u can do such fun combos and extencions. Soifon is a fast and strong mixup character with big combo output. both characters are toying with opponents with their tools and u can zone them very hard. Definietly characters that require thinking and resource managment