Zer

A reckless scientist carries a collection of poorly stowed alchemical items: 3 elixirs of life and 6 alchemical grenades. The scientist replenishes these items each day using scavenged materials. The alchemical grenades deal either acid, cold, or fire damage plus 2 persistent damage and 2 splash damage of the same type (typically the collection contains two of each grenade).

When an attacker scores a critical hit against the reckless scientist, one of the scientist's alchemical items bursts. The GM determines the item randomly. If it was a bomb, the alchemist takes damage from the bomb, and any creature adjacent to the alchemist takes the splash damage. Any other item is wasted.

Zer takes 10 untyped damage for every hour he's exposed to sunlight.

The reckless scientist Interacts to draw an alchemical grenade with an Interact action and throws it as a ranged Strike.

The reckless scientist attempts to combine two alchemical grenades or two elixirs of life into one item. They can Interact to draw the items if necessary. They attempt a DC 22 crafting check, destroying both component items to create one new item. Success The new item has the full effect of both component items, and the reckless scientist can Activate it. If they don't Activate it before the end of their turn, the item explodes (as critical failure). Failure The new item is inert. Critical Failure The unstable item explodes, dealing 3d6 piercing damage to the reckless scientist.