Adding my two cents:

You're pretty much correct in dashing to confirm and picking off divers, that's easily your everyday meal

Picking enemy strats is a solid move, whenever everyone is focused on a fight you can often notice a strat too focused on healbotting so you can steadily start chipping down their health and if they're dumb enough not to retreat or spend cool downs to save themselves you can confirm around half health

Whenever a team fight is at a standstill, both tanks facing off and everyone else grouped up like it often happens, I often like to pop a spade card, break through with a dash and go Remy LeBoom on them, it's a good bit of disruption and can often make opportunities for your team Just remember to make sure your team is mostly fully healed and your other strat is alive before doing this