Operation Blood of Perita will be the final event to close out 2025 for Warframe. The name would imply that you engage with this Operation thorugh the newly added Perita Rebellion game mode (accessible via Dark Refectory), but surprisingly, the much easier way to farm it is tuning into the Void mission operations that rotate in and out every two hours.
In this guide, we'll go over what's in store for the Operation Blood of Perita, a first-time Tau-themed event in Warframe, and how to best farm it.
When does Operation Blood of Perita end in Warframe?
Operation Blood of Perita started on December 16, and it's going to be around for roughly three weeks. The official end date and time for this Operation is 11:30 am EST (4:30 pm UTC) on January 6, 2026. Here's how long you have left to farm the Operation:
The vendor for this event is a permanent NPC, so it's possible the event rewards inventory may be available for a few days longer.
How to participate in Operation Blood of Perita in Warframe
First off, Operation Blood of Perita is not a clan Operation, so there's no clan trophies or community stretch golds for this Warframe event. It's a straightforward deal of getting Marks of Valiance from Perita and Void Alerts, and turning them in to get various goodies from Roathe in La Cathedrale.
Prerequisites:
You'll need to complete The Old Peace quest in Warframe to get the rewards from Operation Blood of Perita. It's possible to do the Void Alerts and thus farm Marks of Valiance without having done the quest, but the reward inventory will not be available if you don't finish the quest.
How to farm Marks of Valiance?

You can earn Marks of Valiance in two ways:
- Exclusive Void Alerts from the Navigation menu can give you 20 Marks of Valiance (30 on Steel Path mode) when completed.
- Completing Perita Rebellion (any boss) will give you 8-15 Marks of Valiance on top of the usual Mission rewards (10-17 Marks on Steel Path mode). This is accessed through the Dark Refectory once you've beaten The Old Peace.
By far, the most efficient way to farm Marks of Valiance is to make sure you do all the Void Alerts on Steel Path mode whenever one is available. Perita Rebellion will always take 12+ minutes to complete, and you cannot get any more than 17 Marks of Valiance per run. Meanwhile, some of the Void Alerts can be done within a fraction of that time for much more reward.
If you want to take it easy and just get the exclusive rewards, honoria, and some free Arcanes, just tune in and out of Warframe to do the Void Alerts throughout the day. On average, there will be at least three at any given time, so you should just do these three missions every two hours or so.
Even the Legendary Arcanes are only 6 Marks per copy, so this is historically the easiest way to get one full copy of each Eidolon Arcane in Warframe.
Meanwhile, those who want to grind the Tektolyst Artifact Mods, Antique Arcanes, or the boss tokens needed to purchase Tektolyst Artifacts and unlock the Tauron Strike nodes on your Focus schools, farming Perita Rebellion is a good idea. In general, this is progression you'll likely need for the Tau content coming to Warframe in 2026 anyway, so right now is the best time for this grind.
I've been using a high-Strength nuke Sevagoth for this mode, and it works out well particularly for the Prime Vanguard fight. Otherwise, all-rounder Warframes with some clear and DPS, such as Protea and Jade, work out well for Perita Rebellion.
Full reward inventory for Warframe Operation Blood of Perita

Marks of Valliance can be used to purchase various wares from the Operation vendor, Roathe. Do the following to access the reward inventory for Operation Blood of Perita in Warframe:
- Travel to Sanctum Anatomica, Deimos
- Fast Travel to La Cathedrale
- Be in the Drifter form (as in, not Operator) to enter the Portal
- Go to Roathe, found towards the left
- Select "Exchange Marks of Valiance"
Here's everything you can get from this Operation, including the price and purchase limit for each new and returning reward:
You can only get one fully Rank-5 Arcane of each type (21 copies) this way. Basmu and Ceti Lacera prices are also not very high in the market, but if you're looking to make extra Plats, it's probably worth picking up some extra blueprints for those for trading later.
Check out our other guides on the game:
- How to get Uriel in Warframe
- All Warframes tier list
- Warframe Incarnon weapons tier list
- Warframe Kuva weapons tier list
- Warframe Coda weapons tier list