One thing a lot of people don't know how to build is a successful trick room team. I'm going to show you can build a decent trick room team. Without further ado, let's go!
Trick room has 4 main parts. Trick Room Setter(s), Support, Physical Attacker(s), and Special Attacker(s). We're going to start with the Trick Room setter.
Common Setters:
The trick room setter is what makes your team functional. If you can't get it up, you're stuck with 4 slow Pokemon V 4 other probably faster Pokemon. You should probably build team with 2 setters, but 1 setter trick room teams exist. (Hell, I only use a 1 setter team) You should also calc your spreads to survive common attacks they'd be hit with. Lastly, these Pokemon are messed up when hit with a taunt, so make use of something like Mental Herb
Common Support:
These are the Pokemon that give the trick room setter the space to set up Trick Room. Scrafty is a Fake Out user with decent attack, which can come on handy. However, he is out-sped by faster Fake Out users and can only use Fake Out the first turn he's out. Amoonguss is a much weaker Pokemon than Scrafty, but Rage Powder works any time Amoonguss is alive on the field. He also has the ability to put threats to sleep with Spore. Togekiss is a combination of the other two, having Follow Me and good special attack. However, Togekiss has base 80 speed, and is out-sped by Tyranitar in Trick Room, which can be a problem. Keep in mind these aren't the only Pokemon you can use for support, just some of the more popular ones.
Common Attackers:
This is the part that truly make Trick Room teams deadly. Once trick room is up, Bulky, Slow, Powerful attackers become Bulky, Strong, and
FAST. With this, all you need to do is play smart and make the best of your 5 turns in trick room. Keep in mind, if your attackers go down, so do your chances of winning. When I battle, I usually bring 1 setter, 1 support, and 2 attackers. The usual team builds are 2/1/3 setter / support / attacker or 1/1/4 setter support attacker.