PASSIVE: Tahm Kench stores a percentage of the post-mitigation damage he takes as grey health on his health bar, up to a maximum of 300% of his maximum health.
While Thick Skin is available, and after taking no damage for 4 seconds, Tahm Kench rapidly heals himself to restore 30% − 100% (based on level) of his grey health. Every 0.264 seconds he heals for 10% of his maximum health.
ACTIVE: Tahm Kench converts his current grey health into a shield that lasts for 2.5 seconds.