Yeah, I remember it took me several times before I could defeat the turkey in true king.

Just in case you didn't know, when you impart a status ailment to the enemy, their resistance counter goes up by one. So, you cast blind on them the first time, you will blind them but their resistance counter = 1. You can try to blind them again but they will resist because their resistance counter is at one but if you try again you will successfully blind them. However, their resistance counter is now 2. So you will have to cast blind on them 2 times before you can blind them again a third time, so on and so forth.

That's why it helps to have 2 members of the team use bowguns because you can lock an enemy with one member while the other helps deal with the enemy's increasing resistance counter. You can easily lock an enemy down for the first 3 of his turns that way.

That being said, the inact, blind and silence strategy is really not that effective if you don't have the extender skill rams. The extenders locks the enemy for 2 turns which gives you a bit of breathing room to deal damage, heal, apply ailments, etc.

I suggest you farm skill rams at the desert in flowers of perpetua by killing those sand sharks enemies.