Pet Fusing

To fuse pets is to combine two pets of the same rarity in order to create a pet of the next rarity. This happens in the Pet Yard. There are a few important conditions that must be met before you can fuse your pets:

• Pet Yard: Your Pet Yard level must be at least one rarity higher than the pets you are attempting to fuse.
• Pet Families: The pets you want to fuse must be of the same family. You can change your pet's skin and family via the Pet Wardrobe.
• Pet Rarity: The pets you want to fuse must be of the same rarity.
• Pet Ability Levels: Although not mandatory, it is highly recommended that you only fuse pets which have their ability levels maxed for their respective rarity, as otherwise the fusion's result might be a weaker pet.

Cost of Fusion

Pet fusion can be done with either Fame or Gold. The cost for each rarity increases, as follows:

Ability Levels

As mentioned above, ability levels play an important role in pet fusion. Each pet rarity has a maximum ability level (or cap), as follows:

If Pet A and Pet B are Common, Uncommon, or Rare rarity:
When fusing your two pets, the resultant pet's ability level cap is determined by the current ability level of the first ability of both pets. The formula that can be used to calculate the ability level cap of your resultant pet is as follows:

[(1st Ability Level of Pet A + 1st Ability Level of Pet B) / 2] + 20 = Max Level Cap of Pet C

If Pet A and Pet B are Legendary rarity:

[(1st Ability Level of Pet A + 1st Ability Level of Pet B) / 2] + 10 = Max Level Cap of Pet C

Lets consider an example:

1. You have two Uncommon pets with an ability level cap of 50. 
2. You want to fuse them to a Rare.
3. In order for the resultant Rare pet to have the maximum possible ability level cap of 70, both of your Uncommon pets must have their first ability leveled up to 50.
4. If you fuse them before their fist abilities have been leveled up to 50, it will result in a weaker Rare pet with a lower than 70 cap.

Exploring both options, we will have the following:

Fusing when first ability levels are the maximum for their respective rarity. In our example that will be 50.

By using the formula, we can calculate what ability level cap our pet will have.

[(50+50)/2] + 20 = (100/2) + 20 = 50 + 20 = 70

So, as we can see, our resultant pet has the maximum ability level cap that is possible for the Rare rarity.

Fusing when first ability levels are NOT maxed for their rarity. In our example we will take the number 48 and 37.

By using the formula, we can calculate what ability level cap our pet will have.

[(48+36)/2] + 20 = (84/2) + 20 = 42 + 20 = 62

Our resultant pet will have an ability level cap of 62 in this case, which is not the maximum for the Rare rarity. Additionally, depending on how low the ability levels of your pets are, this can also reduce the current ability levels of your upgraded pet. (in this case they might go below 48 and 36, for example)

By NOT fusing when the first abilities of your pets are maxed you will not only get a weaker pet, but will also not be able to use the resultant pet in subsequent good fusions, as it will not be possible for it to be maxed for its respective rarity again.

How to Fuse

Enter the Pet Yard via the portal in the Nexus or Vault.

Talk to the Yard Caretaker and click on "Pets", as seen below.

It will lead you to this menu.

Make sure to click on "Fuse". It is important that you are careful when selecting which pet to fuse and which to sacrifice, as you may do it the wrong-way around and upgrade the wrong pet. Follow the instructions in the snippet:

Once you are done with your pet selection you can click on the currency you wish to use and your pet fusion will be successful.