Information about the unique properties of the Stones of Immortality that should help you in your upcoming endeavors.
Ruby — the character's stats (MM, HP, DM, SP) cannot be lower than half of their maximum value; health +1000%, melee attacks ignore resistances and armor.
Emerald — ?
Sapphire — in melee combat (on attacks), opposing characters must pass a Will save against a value of [50]; otherwise, they will be affected by the Freeze effect (magic: 10). If the attack is parried, the weapon will be frozen; if it is blocked, the shield will be frozen. Immune to fire; water and cold spells do not damage the character but heal them instead.
Topaz — Sun Ray (magic 10), cooldown: 6; Explosion (magic 10), cooldown: 4; Fire Spear (magic 10), cooldown: 4; fire damage does not harm the character but heals them instead. Immune to cold and water.
Diamond — health*2, energy*2, accuracy*2, reaction*2, will*2, speed*2, magic*2, immune to negative effects.
Amethyst — Dominate, Curse, Dispel Magic, Forgetfulness, Cloud of Death, Plague, Mind Blast, Weakness, Necromancy, Banish — no cost and no cooldown.
Aquamarine — ?
Spinel — Reality Rift and Fate Control — no cost and no cooldown.
Amber — regenerates 40% health per turn, removes negative health. It is the foundation of the host's body and cannot be easily separated from it.