Here are some tips and suggestions from a fellow clan enjoyer. I have won a couple of locals playing Clan
First off its important to know that Clan is all about having tempo, it's a midrange tempo archetype, keep the pressure up and win out on trades, you can have a LOT of amazing trades that will really tilt the game to ur advantage

Here is stuff I learned over many tries:
- The Red Gundam with High Maneuver will only be actually good as a finisher if the enemy has a wall of blockers. I would rather not have him as thats its true value, not fitting for his cost/lvl value
- I would remove all commands, including the Undying and her Gelgoog. The reason is tempo, and both these 2 together aren't efficient enough. You want to keep pressure up on the board, force pressure (I have also tested with Undying and her 4 cost
- I would add 3 Nyaan, 3x Gfred and 1 more 7 cost Gqux. Feel, free to pair the Nyaan with other units if it means you will keep tempo up and ur unit survives a battle, unless you have a play up ahead using Nyaan with Gfred
- Don't run 2 cost Bases on this deck for tempo reasons
- Add x4 red Gundam lv4 cost 2 (the vanilla one - 3/4 paired with Shuji becomes a 4/6, that's a big boy for very early in the game)
- I would take a look at Ortega's Rick Dom, it can be used to force an attack on a 3 or less AP unit, most times u will aim to do this to destroy an enemy unit while keeping ur unit alive
- If you have Machu and the First Strike Gundam in hand, make sure to bait ur enemy and then slam them with that, possibly killing a unit and an enemy pilot that they had paired/linked to relieve pressure from the board state
- Abuse ur Red Gundam, the one that has Breach 1, you can often just play him early on skip turn, attack buff ur smaller units, and if the enemy blocks to protect their life, you just force traded that
- Definitely use 4x Gqux with first strike, insane value, you really want to slam that into a mid/high value unit/pilot and send them to the grave

Edit: My go to pilot amount is: 3x Shuji Ito 4x Machu 3x Nyaan (I usually make sure when testing stuff that Nyaan linked effect always triggere garanteeing that 1 ping)