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

The first time you fall below half Health each fight, Shield equal to 2 » 3 » 4 times the Burn on your opponent.

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

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

The first time you fall below half Health each fight, Shield equal to 20% » 30% » 40% » 50% of your Max Health.

When you Burn with an item, gain Shield equal to 1x » 2x that item's Burn.

Your Shield items have +1 Shield for every 4 » 3 » 2 gold you have.

Your Shield items have + Shield equal to the value of your Items.

The first time you use a Large item each fight, Shield equal to 10% » 20% » 30% of your Max Health.

When you Haste, Shield 10 » 20 » 30 » 40.