What is the shiny rate for Xurkitree? Currently 0/138 for this event ☠️

Assuming an average shiny rate of 1/20, the statistical probability of not pulling a shiny after 138 raids is 0.084%.

(19/20)¹³⁸ = 0.00084 (or 0.084%)

Am I just the unluckiest person in the world 🥀🥀🥀