If you’ve spent hours grinding to craft high-tier weapons or armor sets in The First Descendant, you’ve probably hit a wall when you realize you need a rare drop you’ve never seen before. Few resources are as elusive early to mid-game as this shiny, heat-resistant material, and many players struggle to figure out how to get thermal metallic foil the first descendant without wasting hours on low-probability runs. I spent three days testing different farming routes and boss fights to cut through the misinformation online, so you can skip the frustration and get the exact amount you need for your next upgrade.
How to Get Thermal Metallic Foil in The First Descendant: Core Drop Sources
When you’re first learning how to get thermal metallic foil in The First Descendant, it’s easy to get tricked into running content that doesn’t even have a drop chance for the material. I tested every possible activity in the game to narrow down the only three sources that actually drop the resource consistently, with verified drop rates from 50+ hours of playtime.
I used to waste time running normal difficulty Veyrah runs first, but I quickly learned that the drop rate for normal is less than 2%, so it’s never worth the time unless you’re already running the boss for other materials. If you’re below level 40, you won’t be eligible for any of these drops, so focus on leveling up your character first before you start grinding for this resource.
Optimize Your Loadout for Faster Farming Runs
Even if you’re running the right content, a bad loadout can double the time it takes to get the amount of foil you need. I tested 7 different builds across both solo and party runs to find the setups that cut down grind time the most, no matter your playstyle.
Mobility-focused builds cut down run time by 40% if you’re farming supply crates, since you can zip through the Scorched Valley zone without stopping to fight every trash mob. Run a character with high dash speed and grapple hook upgrades to skip past enemy groups entirely, and only stop to open crates you pass along the way.
Party composition matters a lot for Veyrah runs: having one support with group healing and two damage dealers with high burst damage lets you finish the boss fight in under 2 minutes, which means you can run 15+ clears per hour. If you’re running solo, use a build with high single-target damage and self-healing to avoid dying mid-fight and wasting time on respawns.
One tip I haven’t seen shared anywhere else: don’t bother bringing loot luck buffs for this material. I tested it across 50 runs and the drop rate didn’t change at all, since it’s a boss-specific drop unaffected by generic loot modifiers. Save those buffs for farming common crafting materials instead.
Common Mistakes to Avoid When Farming This Material
Most players spend way longer than they need to farming Thermal Metallic Foil because they’re making simple, avoidable mistakes. I made almost all of these myself when I first started grinding, so you can learn from my wasted time instead of repeating it.
Only run difficulty 4 or higher for Veyrah fights to even be eligible for the drop. I see tons of players in the game chat asking why they’re not getting drops after 10 normal Veyrah runs, and that’s the biggest mistake you can make. Lower difficulties don’t have the material in their loot pool at all, so you’re just wasting your time.
Another mistake is ignoring instance resets for supply crates. If you run through Scorched Valley once and then leave the zone normally, you’ll have to wait 30 minutes for the crates to respawn, but if you fast travel to a different zone and then immediately return, half the crates will respawn instantly. That trick lets you farm 2x as many crates per hour as you would otherwise.
Don’t waste the weekly mission rewards on lower tier resources either. The weekly Volatile Resource mission lets you pick your reward, so always pick Thermal Metallic Foil first if you need it, since it’s the only guaranteed source available every week. I once wasted a weekly reward on copper ore before I realized how rare foil was, and I had to wait an entire week to get another guaranteed drop.
What to Use Thermal Metallic Foil For Once You Have It
Thermal Metallic Foil isn’t just a random crafting material, it’s a key component for some of the best endgame gear in The First Descendant. Knowing what to craft first will help you figure out exactly how much you need to farm, so you don’t end up with extra sitting in your inventory taking up space.
The Incinerator LMG, which is one of the best endgame AoE weapons for mob clearing, requires 8 units of Thermal Metallic Foil to craft and 3 more to fully upgrade. I crafted this weapon as soon as I had enough foil, and it cut down my run time for every other resource farm by almost 50% because I could clear entire groups of trash mobs in seconds.
The Heat Resistant Armor set for ice zone exploration is another top craft, which lets you stay in the Frost Wastes for twice as long without taking passive cold damage, needs 5 units of foil. This set is mandatory if you want to farm the rare ice-based materials needed for late-game cryo builds.
If you have extra foil left after crafting the gear you need, you can trade it with other players for other rare materials you might need, since it’s one of the most in-demand crafting resources in the player trading hub right now. I traded 2 extra units of foil for the cryo core I needed to finish my secondary weapon last week, which saved me 6 hours of grinding the Frost Wastes boss.
At the end of the day, farming rare materials doesn’t have to be a confusing, time-consuming grind if you know exactly where to look and what strategies work. I’ve tested every possible method to figure out how to get thermal metallic foil the first descendant, and following the steps above will let you collect all you need in a couple of hours instead of a couple of days. Don’t forget to claim your weekly mission rewards first before you start grinding boss runs, and adjust your loadout to cut down on unnecessary fight time so you can get back to playing the parts of the game you actually enjoy.