Your shields can change into different shapes, granting you different bonuses.

When you roll initiative, you may choose what form your shields take.

As a bonus action on your turn, you can transform your shields into another shape, or turn them back into regular shields.

For any weapon attack with a shield, add your strength modifier + your proficiency bonus + the damage for the type of shield.

Regular shields

Your shields are perfectly normal. They deal 1d6 bludgeoning damage.

Tower Shields

Your shields become larger and heavier, giving you a +2 to your AC (Combined, not per shield) and a -10 penalty to movement. While in this form, you have a disadvantage on Dexterity saving throws. While in this form, any allies within 5 feet of you have an advantage on Dexterity saving throws. Your shields do 1d8 bludgeoning damage.

Spiked Shields

Your shields become more combat-focused, gaining spikes and sharp edges. You get a -2 to your AC, but your shields deal 1d6 bludgeoning damage + 1d4 piercing damage.

Light Shields

Your shields become smaller and lighter, giving you a +10 bonus to your movement and an advantage on Dexterity saving throws. Your shields deal 1d4 bludgeoning damage. As a bonus action, you may make a melee weapon attack with one of your shields.

When you reach 4th, 8th, 12th, 16th, and 19th level, your shields gain +2 to their damage.