Unit Modification
 
Entrance: 
Lab – Unit Modification
 
Rules: 
1. There are eight Unit Modification Blueprint slots on the interface of each unit type. Place blueprints in different slots to gain corresponding attribute buffs.
2. Each blueprint has one basic attribute and multiple random attributes. The number of random attributes is determined by the blueprint quality.
3. The blueprint set effects will be activated once there are 2/4/6/8 equipped blueprints of the same type. The quality and number of the set effects are determined by the lowest-quality blueprints that activate the set effects.
4. Blueprints in slot G and H increase all units' attributes in your corps.
 
 
Advancing book:
1. Spend materials to level up your blueprints. The level cap is determined by the blueprint quality. By leveling up a blueprint, you can only increase its basic attribute.
2. Once a blueprint has reached its max level, you can spend advancing books to increase its quality and level cap, as well as gain a new random attribute.
3. Level Cap: Green quality: 10, Blue quality: 20, Purple quality: 30, Gold quality: 40
4. You can fuse lower level advancing books into better advancing books. 5 blue advancing books fuse into 1 purple advancing book, and 5 purple advancing book fuse into 1 gold advancing book.
 
Attribute Transfer:
1.The random attributes of a blueprint can be transfered to an equipped blueprint in the same slot by spending “Transfer Books.” After the transfer, the transfered attribute will disappear from the source blueprint and replace a random attribute of the target blueprint.
2. If the source and target attributes are of different types, there'll be no limitations. If the source and target attributes are of the same type, the source attribute must be higher than the target attribute.
3. Lower-level transfer books can fuse into better transfer books. 5 green transfer books can fuse into 1 blue Transfer book, 5 blue transfer books can fuse into 1 purple transfer book, 5 purple transfer books can fuse into 1 gold transfer book.

 
Dimantle:
Dismantle the blueprints you no longer need to earn blueprint upgrade materials and a chance to get advancing and transfer books. If the dismantled blueprint has been upgraded, 60% of the upgrade materials will be returned.
 
Spotlights unlock requirement:
When 8 modification blueprints for a unit type reach gold quality, 2 spotlights will be lit up on the battlefield map.
When 8 modification blueprints for four unit types reach gold quality, 4 spotlights will be lit up.