After some thinking I figured I make a complete item set inspired by Darksiders and I’m totally not biassed because it’s the only series I love even more than Borderlands, well aside from Turok
So here we go
Rider of the pale horse
But sometimes, the hero dies in the end
+75% Melee damage
+2,5% damage reduction
Melee attacks randomly cause either a cryo, corrosion or radiation status effect that also spreads to one additional target. If an enemies dies under these effects you regenerate 1%/max Health
Upon gaining a Second Wind you gain massive health regeneration for 60sec.
Pretty much a really strong Stormfront with purple lightning.
Rider of the black horse
For the Horsemen!
-10% max. health
Enemies drop more ammo,health and cash pick-ups
+50% melee damage
Enemies that are hit by a lightning arc are also afflicted by an incendiary status effect.
If an enemy dies from the grenade it reduces action skill cooldown by 1sec.
After throwing a grenade all chests in the vicinity are “pinged/marked” for a short time
Rider of the white horse
I’m not alone
Below average shield capacity
90% chance to absorb enemies pistol bullets
While shield is full has a 20% chance that you shoot 2 pistol projectiles instead of 1.
+100% sliding speed after shield break for 5 sec.
+100% Pistol damage
+50% reload speed with Tediore guns
+10% movement speed
+10% damage reduction while sliding, being airborne
+5% damage reduction while reloading
Also if you have equipped every item of the set (these + Rider of the red horse) you get +20% action cooldown rate and a secret bonus depending on which class you play:
-Moze: + 30% Bearfist and Iron Bear stomp damage.
-FL4K: +20% damage with Rakk Attack
-Amara: +10% Elemental effect duration
-Zane: +20% Digi Clone duration
I hope these are not too ridiculous.