Focused Will heals between 5 and 20 damage on a wound, based on cast power. It also drains stamina from the target equivalent to the damage healed (e.g. 7% stamina loss for 7 damage healed). If cast on a creature, it will automatically target that creature's most severe wound.
The amount of stamina drained is reduced by Body Stamina, as with other stamina-draining activities.
Healing spells and enchantments grant the healed player a healing resistance effect. This effect is applied based on how much health is healed, and will reduce all further healing on the target from any healing spells or enchantments. This includes healing spells as well as weapon enchantments that heal the player, such as Life Transfer.
The maximum duration of healing resistance is approximately 20 minutes, and the reduction scales linearly from that mark. For example, if you have 10 minutes of healing resistance remaining, you will receive heals at 50% normal effectiveness.