CF: Robust Health

Whether due to divine energy or mystical forces, you've become resistant to many common ailments. When you receive this feature you have advantage to all rolls involving Disease and Poison ⚙️ . If you already have advantage, you gain bonus dice to those checks.

By character 10th level, you become immune to these effects entirely (including damage). When you take any kind of Rest, you remove one stack of Exhaustion.