Hello My name is Nate, I'm a player on the Natticus account. I love math and statistics, and I often use them to analyze different situations and scenarios in TribalWars. The rewards from this ongoing event (Battle of the Tower) are different from the rewards of previous events, as it isn't completely obvious which reward is best, so I thought I'd share some of the math I did in determining the optimal purchases during this event with you guys; the players of W90. If I get positive feedback on this post I'll be happy to post more of these. As always, if I did any math wrong, please let me know. Anyway, let's jump right in: A good baseline to start with are the resource packages. They add a percentage of your warehouse capacity in resources to every one of your villages. The resource packages being offered during this event are the following: 5% Resource Package -- 360 Glory 10% Resource Package -- 600 Glory 20% Resource Package -- 990 Glory 30% Resource Package -- 1550 Glory By dividing the Warehouse percentage by the cost in glory, we can find the efficiency of these items in terms of Percentage of Warehouse Per Glory (in other words, how much Total Warehouse Capacity each point of Glory is worth) 5% -- 0.01389% Total Warehouse Capacity/Glory 10% -- 0.01667% Total Warehouse Capacity/Glory 20% -- 0.02020% Total Warehouse Capacity/Glory 30% -- 0.01935% Total Warehouse Capacity/Glory As can be seen by the above data, the 20% Resource Package is actually the most efficient Resource Package offered during this event. Each point of Glory spent on the 20% Resource Package is worth 0.0202% of your Total Warehouse Capacity. As we move forward with the calculations, it is important to note that Total Warehouse Capacity is calculated by adding up how much of each resource your warehouses can store in all your villages. Average Warehouse Capacity is calculated by dividing the Total Warehouse Capacity by the number of villages you have, outputting the average capacity of the warehouses in your villages. To find the best item to buy during this event, I compared the resources gained from every other reward to the resources gained from buying the 20% Resource Package. Whether or not the reward is worth buying is determined by figuring out how much each Glory is worth, and comparing that to the value of Glory spent on the 20% Resource Package. Let's compare! Raid Booster Grants +10% Haul Capacity for 48 hours -- 200 Glory Multiplying the Glory cost of each item by the efficiency of the 20% Resource Package returns the minimum of how much Total Warehouse Capacity in resources this item has to grant for it to be worth more than the 20% Resource Package. 200 Glory x 0.02020 Total Warehouse Capacity/Glory = 4.040% Total Warehouse Capacity So for the Raid Booster to be worth more than the 20% Resource Package, it has to generate at least 4.040% of your Total Warehouse Capacity in resources. (4.040 x 10)/2 = 20.20% Total Warehouse Capacity in farming per day Since this item is a +10% boost to hauls and lasts 48 hours, this item is worth more than the 20% Resource Package only if you farm 20.20% of your Total Warehouse Capacity per day AND all of your hauls are full hauls. With a Total Warehouse Capacity of 1 million, I would have to farm 202,000 of each resource per day in only full hauls, or 606,000 total resources for this to be worth more than the 20% Resource Package. Flamboyant Speech Grants a resource package worth half the cost of a noble for every noble produced for 24 hours-- 880 Glory 880 Glory x 0.02020 = 17.777% Total Warehouse Capacity to be worth more than 20% Resource Package 17.777% x 2 = 35.555% Total Warehouse Capacity In order for this item to be worth more than the 20% Resource Package, it would have to generate 17.777% of your Total Warehouse Capacity, meaning you would have to spend at least 35.55555% of your Total Warehouse Capacity on nobles while under its effect. Noble cost = 46666.666 Average per resource Nobles > (Total Warehouse Capacity x 0.355555)/46666.666 This reward is worth more than the 20% Resource Package only if you produce this many nobles in the 24 hours: Number of Nobles > Total Warehouse Capacity/131250 With a Total Warehouse Capacity of 1 million, I would have to produce 8 nobles for this item to be worth more than the 20% Resources Package. Noble Decree Decreases the cost of Gold Coins by 10% for 24 hours -- 1100 glory 1100 Glory x 0.02020 = 22.222% Total Warehouse Capacity to be worth more than 20% Resource Package 22.222% x 10 = 222.22% Total Warehouse Capacity For the Noble Decree to be worth more than the 20% Resource Package, you have to spend at least 222.22222% of your Total Warehouse Capacity on Coins. Coin Cost = 27667 Average per resource Coins > (Total Warehouse Capacity x 2.222)/27666.666 The Noble Decree is worth more than the 20% Resource Package only if you mint this many coins in the 24 hours: Number of Coins > Total Warehouse Capacity/12451 With a Total Warehouse Capacity of 1 million, I would have to mint 81 Coins for this item to be worth more than the 20% Resource Package. War Effort +30% Base Production of each resource for 48 hours -- 1380 Glory 1380 Glory x 0.02020 = 27.8787% Total Warehouse Capacity to be worth more than 20% Resource Package 27.8787% / 2 = 13.9393% Total Warehouse Capacity/day 13.9393% / 24 = 0.5808% Total Warehouse Capacity/hour For the War Effort to be worth more than the 20% Resource Package, it will have to produce at least 0.5808% of your Total Warehouse Capacity every hour. ((Average Wood Output + Average Clay Output + Average Iron Output)/3)*0.3 > Average Warehouse Capacity*0.005808 The War Effort is worth more than the 20% Resource Package only if your average base resource output per resource (not including other buffs like the +20% premium) is this high: Average Resource Output > Average Warehouse Capacity/51.65 With an Average Warehouse Capacity of 200,000, my average resource output per resource would have to be at least 3873 resources/hour. Note that for this reward, Average Warehouse Capacity is used, not Total Warehouse Capacity. Also 'Average Resource Output' represents the average output of each resource production building in every village across your empire, and so is a value between 60 and 4800. If your Average Warehouse Capacity is greater than 247,920, this reward will never be worth more than the 20% Resource Package. Privilege Instantly creates a nobleman in the selected village if requirements have been met -- 1740 Glory 1740 Glory x 0.02020 = 35.151% Total Warehouse Capacity to be worth more than 20% Resource Package Noble Cost = 46667 Average per resource Total Warehouse Capacity = 46667/0.351 The Privilege reward is worth more than the 20% Resource Package only if your Total Warehouse Capacity is less than 132,954 If I had a Total Warehouse Capacity of 1 million, it would not be worth getting this reward, as the 20% Resource Package is better. Improved Mine Carts Permanently improves iron production in one village by 10% -- 1950 Glory This reward produces the most resources in this list because its effects are permanent, however the resources take a long time to pay off. 1950 Glory x 0.02020 = 39.3939% Total Warehouse Capacity to be worth more than 20% Resource Package Hours to Pay Off = (Total Warehouse Capacity * 0.393939)/((Selected Village Iron Output*0.1)/3) Improved Mine Carts are worth more than the 20% Resource Package after this many hours: Number of Hours = 11.81 x (Total Warehouse Capacity / Selected Village Iron Output) If I had a Total Warehouse Capacity of 1 million and an iron output of 2254 (Iron Mine level 25), it would take 5240 Hours, or 218 Days, to be worth more than the 20% Resource Package. War Chest Instantly mints one gold coin for every village you have -- 2180 Glory 2180 Glory x 0.02020 = 44.0404% Total Warehouse Capacity to be worth more than 20% Resource Package Coin Cost = 27667 Average per resource Average Warehouse Capacity = 27667/0.440404 The War Chest reward is worth more than the 20% Resource Package only if your Average Warehouse Capacity is less than 62,821 If my Average Warehouse Capacity was 200,000, it would not be worth getting this reward, as the 20% Resource Package is better. The bolded subsections of each reward describe when that reward is worth more than the 20% Resource Package. Inputting your own Total Warehouse Capacity into that calculation will tell you whether or not it is worthwhile buying that reward. For large accounts, the 20% Resource Package is easily the best reward. Reminder that Total Warehouse Capacity is the sum of all your warehouse capacities per resource, so a level 30 warehouse adds 400,000 to the Total Warehouse Capacity. An account with 2 level 30 warehouses has a Total Warehouse Capacity of 800,000. Additionally, this only takes resource generation into account. Many of the other resources provide combat bonuses or other benefits that cannot be accurately measured through the use of resources. This quantitative analysis only takes those rewards that generate resources, or are directly linked to resources into account. TLDR: Use the bolded equation under each reward to determine the best reward to buy on your account. If your account is large (Has a lot of high level warehouses) the 20% Resource Package is almost always the best bet.