A Good method to Make a "grab" skill?

Hi, is there any good methods to do a grab skill?, what i mean by this is that :

the character will grab another character with his right arm

I tried using welds by it causes the enemy and the player character die when any of them dies too

Should i go for another method , motor6d, etc?

You could try using attachments and mechanical contraints between the characters.

I’m really not sure if the death event will trickle/bubble over the attachments to the other character.

You may need to adjust the enemy to have a bit less (or a lot less) mass than the character or the character may not be able to move/grab it.