6.3.1 and above - Which Champions?

IndianGamer3

Completed 6.2.6 today (easily reached boss and used a team rev to completed 6.2)

Need help in identifying heroes that are needed for 6.3.1 (and above). Looks like I have few bleed poison immune agents.

Mention ur top 5 agents from my list, that are worth upgrading.
Thanks!