How often does leech proc

Anyone else play around with leech, know how often leech procs. I got the numbers in combat chat on how much my attacks are healing for, but haven’t run test on how many secs go by before I see that “your leech healed for 4000” message, i will do the test later if I get no answers, just trying to save some time, thank you.

If you mean the tertiary stat, leech, it doesn’t tick - it procs. When you deal damage, leech heals you for a portion of it. If you have a lot of discrete damage events in a short period (such as a MM hunter with barrage and rapid fire) leech heals you for each and every one of them. If you have periodic damage, it heals you whenever the damage ticks. If you do a bunch of damage all at once, it heals you all at once.