Card effect
On Combat Start: your 3 highest-level 【Tripartite】 heroes gain 20% physical and magic lifesteal; doubled if the target is Lu Bu.
Skill

Passive: Lu Bu's basic attacks deal area damage to enemies in front of him. Active: Lu Bu leaps into the densest enemy area, knocking up enemies within 2 tiles for 1 second, dealing 120+120% physical attack as physical damage and reducing their healing by 70% for 5 seconds. Each enemy hit restores 5% of his max HP and grants 20% physical lifesteal for the next 5 seconds.
Upgrades
Awakened card

Your 6 highest-level 【Tripartite】 heroes gain 20% physical and magic lifesteal; doubled if the target is Lu Bu.
On Combat Start: your 6 highest-level 【Tripartite】 heroes gain 20% physical and magic lifesteal; doubled if the target is Lu Bu.
How to obtain
Source: obtained from the shop, auctions and other channels