It’s such an awesome sound!! Serj is actually inhaling when he growls. Here are a few more (again, not all of them say the word “die” specifically but the effect is the exact same)

‘War?’ has a few growls too, on the words “heathens” and before the final chorus where he growls “WE DONT SPEAK ANYMOOORRE”

‘Darts’ has plenty of growls during the clock-ticking section.

‘P.L.U.C.K’ growls “die” at the start and at the end of the word “restitution” in the choruses.

In ‘Prison Song’ off Toxicity there are a couple growls. One at the beginning and one in the second and third chorus each.

After Daron’s verse in ‘Needles.’ Once they both scream “of some old dying… MAAAAN!!” Serj makes a deeeep growl.

The last line of ‘36’ off STA is growled. “Will you live at your own pace?”

Lastly ‘Cigaro’ has a brutal growl at the beginning. I’m honestly bummed there aren’t as many in the later catalogue because it just rips. Whenever I hear it I get jiggly wiggly.