When you use a Weapon, it gains +3% » +6% » +9% » +12% Crit Chance for the fight.

Your leftmost Ammo item has +1 » +2 » +3 » +4 Max Ammo.

When you win a fight against a Hero, gain 2 » 3 » 4 » 5 gold.

When you buy a Weapon, permanently gain 20 » 30 » 40 » 50 Max Health.

Your items have +2% » +4% » +6% » +8% Crit Chance for each Weapon you have.

If you have 5 or fewer items, your items have +10% » +20% » +30% » +40% Crit Chance.

When you Burn, your Weapons gain +5 » +10 » +15 » +20 Damage for the fight.

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

Your Heal items have +5% » +10% » +15% » +20% Crit Chance.

Your Shield items have +5% » +10% » +15% » +20% Crit Chance.