Foreword.
A very long time ago @mad_lee created the lightning PRM build.
It was one of the best and safest farmers of the crucible at that time. As time passed, the game offered new challenges, the PRM (skill and items) almost did not change.
Now PRM is an average skill that becomes good when using a invokers set (lightning PRM) and synergy spellbinder (aether PRM).
A few details about the current state of PRM.
Lightning PRM https://www.grimtools.com/calc/O2GgLvl2
High likely the best PRM build.The average time of the crucible was less than 5:00 (according to @mad_lee).
Aether PRM https://www.grimtools.com/calc/d2jn6Pv2
The average time of the crucible is around 5:20.The power of this build is synergy spellbinders. The main issue is bad support for itemization.
Fire PRM https://www.grimtools.com/calc/p25Og3BZ
The average time of the crucible is around 5:10. The main issue is that almost the same items are used as the lightning RPM build, fire PRM worse in damage and survival.
Cold PRM https://www.grimtools.com/calc/dVbGWXEZ
The average time of the crucible is around 5:30. This is not bad build, but it has a bad AoE (secondary projectiles from Proliferation not converted to cold). Also, the build needs to stacking damage to beast, otherwise, you can’t kill Kuba.
Ele PRM https://www.grimtools.com/calc/M2gPwrYV
The average time of the crucible is around 5:30 with neutral mutator. Like other ele builds is the dependence on mutators. Probably the only PRM build that Supercharged helps.
Suggestions.
1.Possible rework Supercharged and changes Proliferation.
Supercharged. I suggest changing electocute to flat lightning (68 on 12/12 and 112 on 22/12). Also chance to stun change to reduced defense ability (with removed from invoker set).
Proliferation. I suggest split elemental damage to fire and cold (for compensation changes Supercharged and helps fire PRM and cold PRM).
2. Itemezation:
Heart of Malmouth - change 25% crit damage mod to flat aether damage. Also add necromancer support (resist reduction to Ill Omen or some + to skills or other mod).
Wendigo Eye - increase 35 elemental damage to 90 elemental damage.
Faraths Cube - change resist reduction mod from Storm box to Word of pein for improve qol. Also, if Zantai does not change supercharged, can add global conversion aether to cold (15-20%) for support AoE damage.
Mythical Albrecht’s Duality or Mythical Screams of the Aether - add +2 to Proliferation.
Mythical Cortosian Scrolls - change chaos resist to pierce resist.