Life Block

Trigger The spell's target would take damage

Effect Reduce the triggering damage by 10, but you lose 5 Hit Points. Even if this reduces the damage to 0, the target still takes any effects that would come with the damage, such as the poison on a viper's fangs Strike.

Heightened (+2) The reaction reduces the damage by another 10, and you lose 5 more Hit Points. If you want to lose fewer Hit Points, you can choose to lower the damage reduction and HP lost to what any lower-level version of the spell could do without lowering the spell's actual level.