This calculator is arithmetic on a table, not a live mixer. Enter quantities from your own [MONGOLS] Command An Army session. It will not click the shop.
Material planner
Gems still needed for summons
Subtract the Gems you already have from the cost of the summons you want. September and October writeups both describe a standard summon at 50 Gems and a ten-pull at 500 Gems, with no bulk discount. Change the per-summon cost if your banner shows a different price. This does not read your account.
Required total = materials per upgrade × number of upgrades. Missing = max(required total − materials already owned, 0).
Example defaults match the reported 50 and 500 prices. A ten-pull is 10 summons at 50, not a cheaper bundle. Skill Crystals are a separate currency and are not included.
Drop probability
Chance of at least one featured pull
Estimates the chance of seeing a troop at least once across independent summons. Type the percent printed on your summon screen. Published lists do not agree: several September tables put Spartan and Immortal at 0.19 percent and Samurai and Berserker at 0.06 percent, one guide printed 0.08 percent for the top troops, and one creator read Berserker at 0.15 percent on the summon screen. A Super Luck capture showed Laestrygonian at 0.01 percent, which may be an event rate. The 0.19 default is only an example, not the live rate, and this is not a pity counter.
Chance of at least one success = 1 − (1 − chance per attempt) raised to the number of attempts.
Each summon is treated as an independent try. No source has published an official pity threshold. One October database claims the next pull is a 3-star after 50 misses; do not type 100 here to imitate that rule. If the banner rotates, re-read the percent before you calculate.
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