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Skill essence upgrade cards, also called Omni Cards when they aren't attuned to a particular skill, are cards that can be used to upgrade skills of creatures. Upgrade cards can be divided into two categories, 5-star upgrade cards and 4-star upgrade cards. 4-star upgrade cards can be used to upgrade skills of 1 to 4-star creatures, whilst 5-star upgrade cards can be used to upgrade any creature. This is a critical distinction as you may believe a level 13 4-star Gas Cloud skill essence to be superior to the level 9 5-star Gas Cloud skill essence, but you could not use the former on a Venom Tyrant or Anathema.

Obtaining Upgrade Cards Edit

You can obtain upgrade cards by using maps taken from finishing Grimoire, level 1 gives 1 map, level 2 gives 2 maps and so on. You can also sell upgrade cards to gain points. Points can then be used to draw Upgrade Cards from the altar. 1x draw costs 150 points, while 5x draw costs 675 points. When selling upgrade cards, keep in mind that the higher the level and star rank of the upgrade cards, the more points you will receive. Unfortunately Omni Cards cannot be earned through alter draws and are only given away as rewards for spending real money in Deck Heroes. Here is a list of obtainable upgrade cards from alter and Grimoire maps.

Since the beginning of November 2016 these are the figures I have come up with (I will continue to update these as I gather more information so I have a larger sample size):

Grimoire Maps:

  • Cannot draw level 14 or 15 cards
  • 42% 5 star cards, rest will be 4 stars
  • 6% chance to draw level 10 or higher (Premium cards)
  • 70.5% chance to draw level 5 or lower (Garbage cards)

Points Altar:

  • 47% 5 star cards, rest will be 4 stars
  • 26.1% chance to draw level 10 or higher (Premium cards)
  • 45% chance to draw level 5 or lower (Garbage cards)

Gem Altar:

  • Confirmed draws of Sacrifice and other special cards.
  • 29% 5 star cards, rest will be 4 stars
  • 12% chance to draw level 10 or higher (Premium cards)
  • 48% chance to draw level 5 or lower (Garbage cards)

Upgrade Points Earned from Selling Edit

Level 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
5-Star 887 585 386 254 168 110 73 48 31 21 13 9 6 3 2
4-Star 776 511 337 222 147 97 63 42 27 18 12 7 5 3 2

Cost Calculations Edit

Your cards will not only have stars but also a level (1 being the lowest, 15 being the highest, with levels 14 and 15 being extremely difficult to obtain). Skill upgrade cards give experience by level similar to the exponential power of 2. In other words, each level is worth twice that of the previous. Keep in mind that when using a card with a lower level than your existing skill you will be hit with a penalty as the game warns you. For every level less than the skill you are upgrading, your essence gets a 25% penalty. You do not get any extra bonus for using essences that are higher level than your skill, just a 0% penalty. So if you want to level up Gas Cloud 8 and use a level 5 essence you will only see a gain of 4 experience points (-75%).

Because upgrading skills takes a set amount of experience, you can see beforehand what level your new skill will be at, or if it will even gain a level at all--such as in the instance of buying one of the omni packs to earn a level 13 5-star omni skill card using real money. Say you were trying to level up immunity 9 to immunity 10, you could use the chart below to know level 9 skills will take 5,000 experience and 1 level 13 5-star omni skill card will only give you 4096, leaving you 904 experience short.

Only Evolved 5-star creatures can upgrade skills beyond level 10. If you're having trouble, make sure you're using a skill that can actually go to level 15, that it is on a 5-star Creature, and that your Creature has already been Evolved. Only these skills can upgrade to 15.

Experience given from skill card: Edit

1 1
2 2
3 4
4 8
5 16
6 32
7 64
8 128
9 256
10 512
11 1024
12 2048
13 4096
14 8192
15 16,384

Experience Required to level up for normal skills: Edit

Current Level Experience to next level Cumulative cost from level 1 Will level to
1 20 20 2
2 50 70 3
3 100 170 4
4 250 420 5
5 500 920 6
6 1250 2170 7
7 2500 4670 8
8 3750 8420 9
9 5000 13420 10
10 7500 20920 11
11 10000 30920 12
12 12500 43420 13
13 15000 58420 14
14 17500 75920 15
Experience required to level up for powerful skills (ie: Cleanse & Delay):
Current Level Experience to next level Will level to
1 5000 2
2 10000 3
3 25000 4
4 50000 5

Experience required to level up for Primary special skills (ie: Overpower):

Current Level Experience to next level Cumulative Cost from level 1 Will level to
1 100 100 2
2 ? ? 3
3 ? ? 4
4 ? ? 5
5 ? 3700 6
6 5000 8700 7
7 10000 18700 8
8 15000 33700 9
9 20000 53700 10
10 30000 83700 11
11 ? ? 12
12 ? ? 13
13 ? ? 14
14 ? ? 15

Experience required to level up for Secondary special skills(ie: Killing Intent):

Current Level Experience to next level Cumulative Cost from level 1 Will level to
1 50 50 2
2 ? ? 3
3 ? ? 4
4 ? ? 5
5 ? 1850 6
6 2500 4350 7
7 5000 9350 8
8 7500 16850 9
9 10000 26850 10
10 15000 41850 11
11 22500 64350 12
12 ? ? 13
13 ? ? 14
14 ? ? 15

Experience required to level up for Other special skills (ie: Corrosion):

Current Level Experience to next level Cumulative Cost from level 1 Will level to
1 100 100 2
2 ? ? 3
3 ? ? 4
4 ? ? 5
5 ? ? 6
6 ? ? 7
7 ? ? 8
8 ? ? 9
9 ? <4096 10

I felt the need to add this category after a recent discovery even though I know very little and can only make assumptions at this point. With the addition of new creatures in late 2016 that need their skills upgraded with omni essences, I was excited to update this page. This update is current as of the January 28th 2017 Purchase Reward of an Arcane Conjurer for buying 16,400 gems. Corrosion upgrades all the way to level 10 with a single omni essence, leading me to believe that the same might be true of Mindflayer and Sacred Wolf. If I am able to obtain a level 7 omni essence or get a Mindflayer from Relic Chests soon, I will have more information for this section.

PicturesEdit

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