Heroes each have their unique skills. There are Block Skills, Passive Skills, and Special Skills.
Block Skills are unique abilities that every Hero has. These Skills are affected based on the number of Blockchains used:
1 Chain - Base Block Skill activated
2 Chain - Increase effect of Block Skill
3 Chain - Max blocks used at once with an increased effect of Block Skill
Since every hero has their own unique abilities/skills, every Passive Skill is activated in various ways.
Some examples are:
- Using an Ally 3-Chain
- Using own's 3-Chain
- Activated after a certain Block Skill ability is used
Special Skills are skills that can be taught to Heroes, by using the Skill Lab (Facility > Skill Lab).
Special Skills are unlocked by acquiring the required Hero for that Skill. Skills are also leveled up this way (leveling up a Skill will increase the skill's stats.)
To use a Special Skill, you need to fill up your Hero's SP gauge, which fills upon using Hero Blocks.
Once the bar reaches 100, a Special Skill is added onto your Blocks to use or save for later.