This spell invokes the strength of Earth to strengthen a physical structure against harm. The wood and stone o the target structure – which may be as large as a castle are infused with the strength of the mountains themselves, allowing it to withstand floods, earthquakes, and the assaults of siege engines.
When using the Siege rules from the L5R 4th edition supplement The Great Clans, for the duration of this spell the Wounds and Reduction of the target structure are doubled. When the spell expires, the extra Wounds are lost – if this reduces the structure to zero Wounds, it immediately collapses into ruin.
Source
Source Book
Ring
Rank
5
Range
300’
Area of Effect
One target structure (up to a small castle)
Duration
1 day
Raises
Range (+150’ per Raise)
Area of Effect (one additional structure for 3 Raises)
Duration (+1 day per 3 Raises)