Preparation is an Exilus mod for Warframes that increases the amount of energy filled upon spawning into a mission.
Stats
| Rank | Effect | Cost |
|---|---|---|
| 0 | +9% | 2 |
| 1 | +18% | 3 |
| 2 | +27% | 4 |
| 3 | +36% | 5 |
| 4 | +45% | 6 |
| 5 | +55% | 7 |
| 6 | +64% | 8 |
| 7 | +73% | 9 |
| 8 | +82% | 10 |
| 9 | +91% | 11 |
| 10 | +100% | 12 |
Acquisition
Obtainable from the Arbitrations vendor in the 
 Arbiters of Hexis room in Relays for 30 
 Vitus Essence.
Notes
- The bonus only applies to the Starting Energy of a Warframe when entering a mission and respawning/reviving from death.
- Starting Energy = Initial Energy + (5 Ă Free Mod Capacity) + (Total Energy Ă Mod Multiplier)
- Example: A rank 30
 Wisp equipped with 
 Primed Flow has a Total Energy pool of 850 and a preset Initial Energy of 150. Let's say she has 9 Free (or available) Mod Capacity. When equipped with a rank 4 Preparation mod (+45%, or x0.45), the Warframe will have 150 + (5 * 9) + (850 * 0.45) = 577.5 Starting Energy. - Example 2: The same setup but with a rank 8 Preparation mod (+82%, or x0.82), the Warframe will have 150 + (5 * 9) + (850 * 0.82) = 892 Starting Energy. In this example, the surplus is effectively lost as it surpasses the 850 Max Energy cap.
- As per the second example, higher ranks of this mod are redundant.
- Between rank 4 and rank 6 of this mod, the increase seems to be around 9.5% instead of the linear 9% from other ranks. This makes a rank 5 Preparation actually grant a 54.5% bonus from Total Energy.
- This is because the max effect of this mod (100% of energy capacity filled) is not evenly divisible by 11 mod ranks. Mods do not display values in the decimal places.
- As
 Harrow already spawns into missions with 100% starting energy because of his Passive, he has no need for this mod. - Does not work on Arenas (Index, Rathuum), not even when re-spawning after death.
- Falling out of bounds and reappearing does not count as spawning for the purposes of this mod.
Tips
- It's recommended at lower-than-max rank on Warframes with high Energy capacity and average Initial Energy.
- The bonus can apply to Sevagoth's Exalted Shadow each time he is summoned.
- If equipped on your Warframe the mod will apply to your Archwing's initial energy during Archwing missions.
Patch History
Update 31.1 (2022-02-09)
- Fixed Preparation Mod not setting your max Energy after entering a Sanctuary Onslaught Conduit.
Hotfix 27.3.6 (2020-03-31)
- Fixed the Preparation Mod not functioning if you have no extra Mod Capacity. As reported here: https://forums.warframe.com/topic/1179175-preparation-mod-does-not-work-if-you-have-no-extra-mod-capacity/
Update 27.3 (2020-03-24)
- Introduced.
