I don't have an issue with the strike talismans.

If you think about them and the make-up it's easy to think of a counter.

"Fight fire with fire", but you have to now go into battle understanding if one of the enemies can have them and plan accordingly.

If the toon with strike is warrior class and you bring in 4 sentinels. Good luck, get what you deserve; Or if you bring in a bunch of glass cannons, same.

My 2 cents.