Defeating a Gun? - I'm Going to Disarm the Tree

When i hit i used one of my er special dice, the reaction dice, to disarm them. Can i do that and take his arms? Probably ant, right? I don't even know what disarming strike means. So now trent, the tree at rears up on his his two broad branches to sort of lift him up and get a good look at the face of the person who just attacked him. And he is going to whip at you with his smaller, a, a spiker branch arm. And he rolls a 21 Rules a Wolf y. When hit, use reaction dice plus s dice to reduce damage by d eight plus dexterity modifier does a lot. O, i