+14 Reblath Failstack Simulation

import random

BLACK_STONE_COST = 210000
DURABILITY_COST = 6450
CLEANSE_COST = 100000

NUMBER_OF_RUNS = 1000000
TARGET_STACK = 15

total_cost = 0
runs = 0

while runs < NUMBER_OF_RUNS:
    stack = 0
    while stack < TARGET_STACK:
            total_cost += BLACK_STONE_COST

            if random.random() < (0.02 + (0.002 * stack)):
                #Enhance successful
                total_cost += CLEANSE_COST
                stack = 0
            else:
                #Enhance failed
                total_cost += DURABILITY_COST
                stack += 1
    runs += 1

print(round(total_cost/NUMBER_OF_RUNS, 0))