Primal Companion to hit question

[FoxWolFrostFire]

Just a simple quick question. In theory using Beast of Air.
When I bonus action shred the to hit is MY Wisdom mod, and my PB right? Or is it My wisdom, my PB, and it's Dex?
Also does the answer change if I use one of my attacks to make it take the attack action?

[Witty Username]

You use your spell attack modifier, which is PB+Wis mod.

[FoxWolFrostFire]

You use your spell attack modifier, which is PB+Wis mod.

Thank you.