Unnatural Resilience

You have the fortitude often attributed to gods, granting the following benefits:

• You gain proficiency in Constitution saving throws. If you are already proficient in them, you instead gain expertise in them.
• Enhanced effects, such as powers or medpacs, that would restore hit points to you can't restore an amount less than half your level + your Constitution modifier. If this amount would exceed that maximum amount of hit points that effect could restore, you instead take that effect's maximum.
• You can add your Constitution modifier to death saving throws you make.