Another example of non-RNG:
Season 1.4 Fallen Caches have a 0.8% chance of giving Eveline’s Locket. Someone recently got two Eveline’s Lockets out of 12 Fallen Caches. What are the chances of that? Apparently better than my account getting a single Oberon’s Keybelt from over 100 caches with a 5% probability each.