Card effect
Every 3 times your heroes Combine, gain 1 random tactic card.
Skill
Air Support
Luban No.7 calls in his pufferfish airship to drop 4 bombs on the battlefield. Each bomb deals 50+80% physical attack as physical damage to enemies hit and leaves a crater. Enemies in a crater take 80% physical attack as physical damage per second and have healing reduced by 70% for 4 seconds (does not stack).
Upgrades
10lv
Bomb damage increased to 50+100% physical attack; crater damage increased to 100% physical attack
40lv
Bombs dropped increased to 8
100lv
The airship crashes after dropping its bombs, dealing 200+300% physical attack as physical damage to all enemies
Awakened card
Luban No.7
Every 3 times your heroes Combine, gain 1 random high-tier tactic card.
Zhulu
Every 3 times your heroes Combine, gain 1 random high-tier tactic card.
How to obtain
Source: obtained from the shop, auctions and other channels