Your items have +5% » +10% Crit Chance for each Flying item you have.

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

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.

Your Large items have +25% » +50% Crit Chance

When you use an item, your items gain 1% » 2% Crit Chance for the fight.

When you Heal or gain Regen, an item gains 3% » 6% » 9% Crit Chance for the fight.

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

Your Properties and Toys have +10% » +15% » +20% Crit Chance.

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