Hello everyone, recently I was wondering what the max possible level for the collection book is, so I tried to figure it out.

This is for the current version of the game as of posting. (40.40 I believe)

Collection Book XP

First of all, the XP for an item in the collection book is calculated like this:

SlotXP + (PLXP * Power Level of Item)

SlotXP is the amount of XP gained for slotting an item, and PLXP is a small amount of XP that is multiplied by the power level of the item slotted.

SlotXP and PLXP are different depending on the item type and rarity. I went through the collection book and wrote down the values in a table:

Type	Rarity	SlotXP	PLXP
Defender	Common	600	300
Defender	Uncommon	845	300
Defender	Rare	1825	300
Defender	Epic	6725	300
Defender	Legendary	31225	300
Hero	Uncommon	3820	325
Hero	Rare	5100	325
Hero	Epic	11500	325
Hero	Legendary	43500	325
Hero	Mythic	59500	325
Weapon	Common	300	150
Weapon	Uncommon	480	150
Weapon	Rare	1200	150
Weapon	Epic	4800	150
Weapon	Legendary	22800	150
Weapon	Mythic	31800	150
Trap	Common	500	300
Trap	Uncommon	680	300
Trap	Rare	1400	300
Trap	Epic	5000	300
Trap	Legendary	23000	300
Survivor	Common	250	150
Survivor	Uncommon	330	150
Survivor	Rare	650	150
Survivor	Epic	2250	150
Survivor	Legendary	10250	150
Lead	Uncommon	180	250
Lead	Rare	500	250
Lead	Epic	2100	250
Lead	Legendary	10100	250
Lead	Mythic	14100	250

For example, if you wanted to figure out the XP gained for slotting a level 1 legendary hero: It starts at power level 12, so 325*12=3900, then add 43500 for the slot bonus, 3900+43500=47400. So it would give 47,400 XP total. The formula below shows this as well:

43500 + (325 * 12) = 47400

There is only one exception to how the XP of an item is calculated. For whatever reason, weapons of rare rarity or higher that are also evolved to 4 stars or higher will give double the points. In that case the formula would look like this:

2 * (SlotXP + (PLXP * Power Level of Item))

Max Collection Book Level

For calculating the max level, we now just need the max power level for every item type and the amount of each item type in the collection book.

I went through and counted the total number of every item type/rarity combination in the collection book and put it into a table:

Type	Rarity	# in CB
Defender	Common	5
Defender	Uncommon	5
Defender	Rare	9
Defender	Epic	9
Defender	Legendary	10
Hero	Uncommon	17
Hero	Rare	44
Hero	Epic	93
Hero	Legendary	200
Hero	Mythic	22
Weapon	Common	24
Weapon	Uncommon	30
Weapon	Rare	60
Weapon	Epic	178
Weapon	Legendary	256
Weapon	Mythic	5
Trap	Common	3
Trap	Uncommon	12
Trap	Rare	20
Trap	Epic	20
Trap	Legendary	21
Survivor	Common	11
Survivor	Uncommon	11
Survivor	Rare	11
Survivor	Epic	12
Survivor	Legendary	11
Lead	Uncommon	8
Lead	Rare	8
Lead	Epic	8
Lead	Legendary	8
Lead	Mythic	24

I also wrote down the max power level for each item type/rarity combination (this is including superchargers):

Type	Rarity	Max PL
Defender	Common	29
Defender	Uncommon	57
Defender	Rare	89
Defender	Epic	122
Defender	Legendary	130
Hero	Uncommon	57
Hero	Rare	89
Hero	Epic	135
Hero	Legendary	144
Hero	Mythic	144
Weapon	Common	29
Weapon	Uncommon	57
Weapon	Rare	89
Weapon	Epic	135
Weapon	Legendary	144
Weapon	Mythic	144
Trap	Common	29
Trap	Uncommon	57
Trap	Rare	89
Trap	Epic	135
Trap	Legendary	144
Survivor	Common	25
Survivor	Uncommon	49
Survivor	Rare	80
Survivor	Epic	128
Survivor	Legendary	145
Lead	Uncommon	44
Lead	Rare	72
Lead	Epic	117
Lead	Legendary	133
Lead	Mythic	150

Then I used this formula:

(SXP + (PLXP * Max PL)) * (# in CB)

For each item type to figure out the total XP that can be gained from each one:

Type	Rarity	Total XP
Defender	Common	46500
Defender	Uncommon	89725
Defender	Rare	256725
Defender	Epic	389925
Defender	Legendary	702250
Hero	Uncommon	379865
Hero	Rare	1497100
Hero	Epic	5149875
Hero	Legendary	18060000
Hero	Mythic	2338600
Weapon	Common	111600
Weapon	Uncommon	270900
Weapon	Rare	1746000
Weapon	Epic	8917800
Weapon	Legendary	22732800
Weapon	Mythic	534000
Trap	Common	27600
Trap	Uncommon	213360
Trap	Rare	562000
Trap	Epic	910000
Trap	Legendary	1390200
Survivor	Common	44000
Survivor	Uncommon	84480
Survivor	Rare	139150
Survivor	Epic	257400
Survivor	Legendary	352000
Lead	Uncommon	89440
Lead	Rare	148000
Lead	Epic	250800
Lead	Legendary	346800
Lead	Mythic	1238400
Grand Total XP		69277295

So the maximum amount of XP that can be gained in the collection book is 69,277,295 XP. But what level would that actually get you to?

To reach level 101 in the collection book, you would need 3,548,250 XP. To get to level 102 and for every level after, you would need an additional 65,000 XP.

So collection book level past level 101 can be calculated as:

101 + ((XP - 3548250) / 65000)

In this case it would be:

101 + ((69277295 - 3548250) / 65000)

That means the max collection book level is: 1112!

I also calculated the max XP/LVL without superchargers, and with/without starter packs:

No Starter Packs and No Superchargers: 64,721,920 XP | LVL 1042

With Starter Packs and No Superchargers: 65,723,720 XP | LVL 1057

No Starter Packs With Superchargers: 68,222,295 XP | LVL 1095

With Starter Packs And Superchargers: 69,277,295 XP | LVL 1112

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Thanks for reading, If you spot any errors in my math let me know :P Also sorry if any parts are confusing lol I tried to write this fast and keep it short