He actually is saying, “You won’t just have power, you’ll have his power.” I’ll try to make it sound clearer in a future version, but I also think our ears are sort of biased because we know what the line is already, and it is already a small line adjustment.
Interesting, I did hear the “won’t” and was looking for “you’ll” but didn’t hear it.
Don’t know how you accomplished the “you’ll” but you could try to take the “'ll” from “we’ll kill him.”