Gardevoir Gothitelle - 1bress1

3-2-2 gothitelle
3-2-2 gardevoir 
2-2 musharna ability
2-2 darmanitan ND
1 cleffa
1 tyrogue
Pokemon = 24
4 pokemon communication
3 rare candy
3 dual ball
2 switch
1 life herb
1 super rod
2 P.O.N.T
1 N
1 judge
1 interviewer's questions
1 fisherman
1 twins

T/S/S = 21

2 DCE
13 psychic 

Energy = 15

Strategy

The goal is to get a gothitelle in the active position as soon as possible to get a trainer lock up.  Once that happens, gardevoir can be set up.  Gardevoir's ability doubles each psychic energy, which powers up goth and darmanitan as attackers.  Musharna is for draw power.

Pokemon Analysis

Musharna is a decent draw pokemon, but I find that this deck works better without it.  Instead, a few more draw supporters will help you out.  The tyrogue is another pokemon that should be dropped since it's easy to donk it with Mewtwo EX and running more than one baby pokemon just isn't viable anymore.

Energy Analysis

You should be able to drop down to 12 energy in this deck considering that each psychic energy counts double.  I wouldn't include DCE at all, just straight psychic.

Trainer/Supporter Analysis

Even though you don't have catcher or collector available to you, it's something that you really need to look into getting.  A good deck cannot run without collector and this deck will struggle more without catcher.  4 collector and 2-3 catcher is what you need.  Since you have 2 stage 2 pokemon, you'll need 4 rare candy.  4 junk arm will let you reuse trainers.  Increasing your draw support to 4 PONT, 2-3 juniper and 2-3 cheren should be sufficient.  I'd increase your twins to 3 as well since you're likely going to lose some pokemon while setting up.  The additional draw support should ensure that you don't need to search out energy, so interviewers can be dropped.  With collector, you wont need dual ball.  With the other draw support you won't need N or judge.  With super rod, you won't need fisherman.  There's no need for life herb since it relies on a flip. 

Overall

After some tweaks to your trainer and supporter lines, your deck should run much more consistent.  Trainer lock isn't very popular right now, so many decks are increasing the number of trainers that they use to keep their decks running. If you can stop them early in the game, you have an excellent shot!