Threefold Wall

Defender
Whenever Threefold Wall is dealt damage, you gain that much life.
Pay {e}: Threefold Wall gains indestructible until end of
turn.

Li Heng is famous for its three titanic walls, each taller
than the last, which can be seen from as far as a day’s
travel away. In the entirety of the city’s existence, its walls
have never been breached by invaders. Even its Malazan
conquerors were forced to use the T’lan Imass to bypass the
walls entirely.