Fleeting Expertise

Fleeting Expertise increases Power Efficiency but reduces Power Duration of Warframe abilities.

Stats

Rank	Power Efficiency	Power Duration	Cost	Conclave
0	+10%	-10%	6	C8
1	+20%	-20%	7	C8
2	+30%	-30%	8	C11
3	+40%	-40%	9	C14
4	+50%	-50%	10	C17
5	+60%	-60%	11	C20

Energy Cost	Unranked (+10%)	Rank 1 (+20%)	Rank 2 (+30%)	Rank 3 (+40%)	Rank 4 (+50%)	Rank 5 (+60%)
100 Power	90	80	70	60	50	40
75 Power	67.5	60	52.5	45	37.5	30
50 Power	45	40	35	30	25	20
35 Power	31.5	28	24.5	21	17.5	14
25 Power	22.5	20	17.5	15	12.5	10
10 Power	9	8	7	6	5	4

Benefits powers that are not affected by duration the most. Thus, it is recommended to equip this mod on frames that are not heavily reliant on Power Duration such as Mag.
- Maxing this on Nova will cause Null Star to only spawn 2 particles.
- Saryn's Miasma ability deals a set amount of damage over its duration, so reducing its duration will increase the damage dealt per second while the ability is active.
  - Keep in mind, however, that this will severely lower the usefulness of the rest of Saryn's abilities.
A combination of Continuity and Constitution can almost completely negate the Power Duration penalty of this mod.

Warframe Mods Edit
Madurai (Offense)	Blind Rage • Continuity ( Archon, Primed) • Energy Conversion • Gale Kick • Firewalker • Hunter Adrenaline • Intensify ( Archon • Precision) • Lightning Dash • Provoked • Rage • Rending Turn • Transient Fortitude
Vazarin (Defense)	Adaptation • Antitoxin • Armored Agility • Augur Accord • Aviator • Battering Maneuver • Catalyzing Shields • Diamond Skin • Fast Deflection • Flame Repellent • Gladiator Aegis • Gladiator Finesse • Gladiator Resolve • Health Conversion • Ice Spring • Insulation • Lightning Rod • Narrow Minded • Overextended • Quick Thinking • Rapid Resilience • Redirection ( Primed) • Reflection • Reflex Guard • Retribution • Rolling Guard • Shock Absorbers • Steel Fiber • Sure Footed ( Primed) • Undying Will • Vigilante Vigor • Vigor ( Primed) • Vitality ( Archon) • Warm Coat
Naramon (Utility)	Augur Message • Augur Reach • Augur Secrets • Constitution • Enemy Sense • Energy Nexus • Equilibrium • Fleeting Expertise • Flow ( Archon, Primed) • Fortitude • Handspring • Heavy Impact • Kavat's Grace • Maglev • Master Thief • Mobilize • Natural Talent • Patagium • Piercing Step • Rush • Streamline • Stretch ( Archon) • Thief's Wit • Toxic Flight • Vigilante Pursuit • Vigorous Swap
Zenurik	Endurance Drift • Power Drift • Preparation
Umbra	Umbral Fiber • Umbral Intensify • Umbral Vitality

Corrupted Mods
Warframe	Blind Rage • Catalyzing Shields • Fleeting Expertise • Narrow Minded • Overextended • Transient Fortitude
Rifle	Critical Delay • Depleted Reload • Heavy Caliber • Tainted Mag • Vile Acceleration • Vile Precision
Shotgun	Burdened Magazine • Critical Deceleration • Frail Momentum • Tainted Shell • Vicious Spread
Pistol	Anemic Agility • Creeping Bullseye • Hollow Point • Magnum Force • Tainted Clip
Melee	Corrupt Charge • Spoiled Strike