When you use a non-Weapon item, Burn 1 » 2 » 3 and Poison 1 » 2 » 3.

The first time your enemy falls below half Health each fight, Burn 10 » 15 » 20 » 25.

When you use a Medium item, a Burn item gains +3 » +6 » +9 Burn for the fight.

The first time you fall below half Health each fight, Burn 20 » 30 » 40.

At the start of each fight, Burn 15 » 25 » 35.

The first time you use a Large item each fight, Burn 10 » 15 » 20.

When you use a Tool, Burn 3 » 5.

When you use an Ammo item, Burn 2 » 3 » 4.

When you use your leftmost item, Burn 2 » 3 » 4.

The first time you fall below half Health each fight, your Burn items have their cooldowns reduced by 50% for the fight.