The first time you fall below half Health each fight, Shield equal to 20% » 30% of your Max Health.

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

The first time you use an item each fight, Shield equal to 10% » 15% » 20% » 25% of your Max Health.

When you use a Weapon, your Shield items gain 3 » 6 » 9 Shield for the fight.

The first time you fall below half Health each fight, use your highest Shield item.

Your leftmost Shield item has +20 » +30 » +40 » +50 Shield.

When an enemy uses a Weapon, your Shield items gain 10 » 20 Shield for the fight.

Your Shield items have +Shield equal to 2 » 3 » 4 times your level.

When you use a non-Shield item, your Shield items gain +2 » +4 » +6 Shield for the fight.

Your Shield items' Cooldowns are reduced by 5% » 10%.