To fuse go to your monster screen and select the monster you want to power-up. You now see the details of the monster. This is your base monster during fusion:
From here you click or tap on the “Fuse” Button at the bottom of the page. This will take you back to the “Monsters” screen. From here, you can select up to five monster(s) you wish to fuse your base monster with. In the screen below there are already five monsters selected. They will be shown at the top of the screen:
Once you’ve selected the monsters, you can then tap “OK” right to the monsters selected to perform the Fusion and have your monster’s experience increased. The monsters selected for fusion will be consumed in the fusion process, and added to the base monster as experience. The result you can see below:
The 'Naga's green and light attributes have increased from 3 to 13 and from 2 to 11. Also take a look at the hitpoints, they have also massively increased.
There are some things to note:
- One is the attribute color. If the base monster and the monster to be fused share the same attribute colors (e.g. red, green, blue, light,dark), you’ll get a 50% boost to the experience gain in Power-Up Fusion.
- If an attribute color is not available in the base monster the experience will be added to the strongest color of your base monster.
- The highter the level of your base monster, the more gold is neede for fusion.