The Damage ARC using Blaze Grenade trial rewards one thing: how much fire damage a single Blaze Grenade lands on a heavy ARC. It is part of the Season 5 Trials rotation running from July 27 to August 3, 2026, and the fastest three-star route is to corner a Leaper on an open map and cook it repeatedly with fire. With the 2x Trials score multiplier removed, the numbers run higher than before, so you will need a bigger damage total than in past weeks.
Quick answer: Bring as many Blaze Grenades as you can carry, find a Leaper on Dam Battlegrounds or Spaceport, and throw one grenade at a time onto it. Each point of ARC damage is worth 1.5 Trials points, so 2,700 fire damage puts you past the 4,000-point mark needed for three stars.
What you need before you start
You cannot enter this trial without a working Blaze Grenade recipe. The Blaze Grenade is a Rare quick-use item that detonates on impact and leaves a fire zone dealing 5 damage per second for 10 seconds across a 10-meter radius. The blueprint is not given to you. It drops from loot containers in industrial and security points of interest, with the Stella Montis loading bay area cited most often. Expect to open several crates before it appears.
Once you have the blueprint learned, crafting is straightforward. Oil is the resource that runs out first, so loot anything that breaks down into Oil while you hunt for the recipe.
| Station | Materials |
|---|---|
| Explosives Station 3 | 1x Explosive Compound + 2x Oil |
| Explosives Station II | 1x Crude Explosives + 2x Oil |
Check your own station tier before committing materials. You do not need a huge stockpile. A stack you can comfortably carry is enough, since the score comes from placement, not volume.
Best target: the Leaper
The Leaper miniboss is the easiest reliable target here. Fire is its weakness, and it carries much less armor than other large ground ARC, so more of your Blaze Grenade damage actually registers. Other heavy machines like the Bombardier and Bastion can work, but the Leaper is simpler to lure and burn on open ground.
Two maps stand out for Leaper density. Dam Battlegrounds is the stronger pick thanks to a higher spawn rate across its points of interest, while Spaceport is a solid backup. Both give you the open space needed to pull a Leaper into a doorway and keep it inside the flames.
Three-star route on Dam Battlegrounds
The math is simple. You earn 1.5 Trials points for every 1 damage dealt to ARC, so 2,700 fire damage lands you above the 4,000-point three-star threshold.
Why grenades do not stack
Multiple Blaze Grenades thrown onto the same target at the same time do not multiply your damage. The fire zones overlap without adding up, so a double throw wastes a grenade for no gain. Sequential burns are what build your score, which is why you wait for one fire to end before deploying the next.
Placement matters just as much as timing. On armored machines, land the grenade low, near where the legs meet the ground. Flames dropped onto the top of a target barely register against the armor plating above.
How to confirm the three stars
As your damage climbs, a Milestone Reached notification appears at the top of the screen and ticks up through one, two, and three stars. You can verify the final result under Logbook then Trials, where the challenge shows your personal best and star rating.
One warning matters above all else. Only your extracted score counts. If you die before leaving the raid, the points are gone no matter how high you climbed, so play it safe and secure your exit once you have the three stars locked in. The trial rotation refreshes on August 3, 2026, so lock in this clear before the challenge cycles out.
