Gillie suit cactus broth and bug repellent..kill all other creatures near and around the mantis feed from behind.

Just make sure you have a trap and death worm horns.

Thumbs up if you think wildcard should put a grab attack on the mantis

Be warned that they have a fairly long range pounce, and do good damage. Don't fight these unless you're truly prepared.

I mean theae guys are super useful but kinda expensive to tame