how to increase the "pursuit" boost
"pursuit" is the option to the side of "tag", once you charge this option up to 100%, you will have a massive boost in your next attack, once used it will deplete completely
In this example you can see all the attacks, each attack will give you a different % once you use them, you can combine the bronze attack into a silver and two of those into a gold one (you also have the special attacks that you unlock once you charge your character's power bar, if you don't use the special attack you can use other attack to chargw beyond yellow in the power bar and deal more damage with the special attack, rearanging and combining lower attacks like bronze and silver will also charge the bar)
here you have all the % for all type of attacks and how much they charge the pursuit boost
bronze attack = 5%
silver attack = 15%
gold attack = 30%
special attack = 20% (this one is a waste to use it without the boost to be honest)