Jacob's Big Feet

You have exceptionally powerful feet from this exceptionally powerful feat. You gain the following benefits:

• When you walk, each footfall casts a Thunderwave centered on you.
• On your turn, you can leap with your gigantic feet toward another location. When you do, you cast Thunder Step without using an action, bonus action, spell slot, or any components. Using this ability does cost 10 feet of movement. As long as you have at least 10 feet of movement remaining, you can continue to use this ability.
• When you use the Dash action, your walking speed increases to 1000 feet.
• When you make a melee attack against a creature, you can kick the creature as a bonus action, rolling the attack as you would for an unarmed strike. If you hit, your enormous meat flappers inflict a brutal 8d6 points of bludgeoning damage. If you are barefoot, the target must make a DC 18 Charisma saving throw or receive an additional 8d6 points of psychic damage.
• When you attempt to purchase footwear of any kind, the cost is multiplied by 4.