Allow me to introduce myself

[Dkgamer]

First of all, welcome to the forums!
If you are on the caves in ult, you should look for a chainsawd to replace that dragon slayer, you will find one from a vulmer and you should do the addicting food quest ias there are a lot of vulmers.
To create a barrier from the amplifiers that you have, you need to find the appropriate barrier for each amplifer, eg.a yellow barrier for amplifier of zonde then use the amplifier when it is equipped to create zonde merge.