Potion of Fire Retaliation (Major)Consumable 18
Source Pathfinder Advanced Player's Guide
Price 5,000 gp
Weight light
Activate 
Interact
For 1 minute after drinking a potion of fire retaliation, you glow with a faint aura of fire energy, and a creature that touches you (such as by making an unarmed attack or using a spell with a range of touch against you) or is adjacent to you and hits you with a melee weapon strike takes fire damage.
The aura deals 4d8 fire damage.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
ConsumableAn item with this trait can be used only once. Unless stated otherwise, it's destroyed after activation. Consumable items include alchemical items and magical consumables such as scrolls and talismans. When a character creates consumable items, they can make them in batches of four.
EvocationEffects and magic items with this trait are associated with the evocation school of magic, typically involving energy and elemental forces.
MagicalSomething with the magical trait is imbued with magical energies not tied to a specific tradition of magic. A magical item radiates a magic aura infused with its dominant school of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.
PotionA potion is a magical liquid activated when you drink it.