Hello! This is a guide to get you through the Cosmic Trial with Gambit. Note: This is NOT the best Gambit. It is NOT end game Gambit. You will not find the BiS items in this build. 

Set Up

I capped myself at 150 Infinity Points for these trial guides. It won't take too long to build up that many. By the time you've leveled up a few characters for synergies and farmed some Heroic (Red) Challenges and terminals for some gear you may even be past 150 IP when you try the trial. Worst thing that can happen when you try the trial is you fail there is no punishment. So give it a shot and see if you're missing damage, survivability or both.

Not all end game builds work equally well with less IP and gear. I tried a couple of the builds that already existed and found one that worked well to get through the Cosmic Trial. 

Synergies

Star Lord, Iron Man and Thor would be good options as well. I do not have those three leveled yet.

Infinities

 I put 38 ranks into Temporal Loophole in the Time Stone. Attack Speed and Movement Speed are both incredibly powerful.

GEAR

- This is the highest damage option at i70.

 and are my go to beefy artifact options.  and  are decent damage options that are pretty easy to farm up. 

His own uniques work for slot 1-5.There's better in some slots but we're trying to make gear as easy to get as we can.

For the medkit you want the shield on med kit use. Other than that prioritize + to spirit on medkit.

Inisgnia was just the one I had.

Team Up

Jessica Jones is kind of becoming my default here. The grouping is just too good.

Playstyle

 I definitely wanted to just chuck cards at enemies for this build. I think a hybrid build is very likely stronger - the talents seem to push you towards doing  both. My ranged gambit (plus one melee skill for vulnerable) got through the trial just fine.

- Filler. Fires additional cards as you stack it up. Try to keep using it in between other skills to keep it at 5 cards per throw as much as possible.

- Use to clear minions. You can throw it once every 8s to get a ranged damage buff.

- Builds up 3 charges. Don't ever let it sit at 3. Make sure the CD is always charging up another one for you. Good damage ability. Thread in as often as you can. 2nd Prio after signature.

- Escape, break CC, dodge damage.

- Fun signature. Good damage. 4s channel, you can't move. You get 80% DR but you're not invulnerable during it. Use on CD. 1st prio.

- Really good damage when fully charged and talented for guaranteed brutal. I don't love the charge mechanic though. I ended up just firing it off w/ no charge but just getting the guaranteed crit.

- Line in front of you. Applies vulnerable for 8s. Does not go on CD, don't spam it isn't great damage itself.

 - Put down a blanket of cards to add a DoT layer.

Gambit is squishy so don't face tank damage. Keep on the move. Hold down your filler in between your other CDs.

Hopefully this helps you clear the Cosmic Trial so that you can start farming your best gear and move on to bigger and better content and bigger and better guides! Have fun out there.

Thanks!

 Lil