Best Crystal Tears for Bleed Build?

[mubii]

Hey everyone,
I'm running a bleed build and was wondering which Crystal Tears are considered the best for maximizing bleed damage or overall effectiveness in fights. I'm mainly using Rivers of Blood and anything with innate bleed. Any recommendations for must-have Tears for this kind of setup? (Non DLC)

[lost horizon]

edge lord bleed build: a guide
white mask
raptor black feather
fire prelate gauntlets and greaves
rivers of blood and wakizashi (dual weild)
dragon communication seal
2x scavenger curved sword
2x bandit's curved sword
greenburst crystal tear, thorny cracked tear, opaline hardtear
green turtle talisman, claw talisman, lord of bood's exultation, rotten winged sword insignia
shard of alexander, millicent's prosthesis (rip great npc)