Resting

My campaigns use a variant rule on healing:

• Resting no longer heals hp on its own
• You regain only 1/2 (Round up) of your hit-die on a long rest

To make up for this (slightly), all characters proficient in the Medicine skill automatically obtain a variant of the Healer feat:

• When you use a healer's kit to stabilize a dying creature, that creature also regains 1 hit point, regardless of whether you succeed.
• During a short or long rest, you can spend uses of your healer's kit to tend to up to 5 creatures. They restore hp equal to 1d6 + (Your Wis Mod) + (The creature's HD). Creature can't regain hit points from this feat again until it finishes a long rest.