Santa, not a mountain lion, killed the Antichrist

[Pachinko]

Even though the cubs helped, Santa is the one who dealt the killing blow. As such, it appears that the assertion that "nothing could stop the birth of the Antichrist except a mountain lion" is not accurate (unless you give them credit for an assist).

[cheddercheese99]

He didn't stop it's birth he killed it. It was born, it possessed Kyle and then the cubs pulled it out and Santa killed it. It was still born though.

[Pachinko]

Good points, Cheddar. Thanks!