User blog:SummonThePizza/Plausibility of Semblances

I'm not sure the plausibility and usefulness of the semblances I've made for my characters, so I'd like to ask the community, or at least whoever is willing to comment, what works and what doesn't.

1. Rush - Increases strength and endurance and slows the user's perception of time. Puts strain on the user's body. Audrey Karat

2. Outburst - Unleashes a shockwave of energy from the user's body. Tires the user out with each use. Primrose Kuklos

3. Defiant - Allows the user to negate friction (traction, liquid resistance, air resistance). No significant weakness. Charlotte Cerise

4. Silent Step - Makes the user's movements completely silent. User can be heard if struck by outside force. Tynan Greil

5. Pack Animal - Creates up to four clones of the user. Strength of clones depends on the user's current stamina. Greyson Lupus

6. Refraction - Renders the user completelyt invisible. Can still be heard. Can also be seen if covered in a bright substance. Opal Silica

7. Burning Passion - Creates near-transparent flames that create the sensation of burning, but don't actually burn the target. Can be seen if one focuses. Useless against water. Lan Sol

8. Tidal Force - Allows the user to control water in all of its forms. Can only use pre-existing water within half of mile of the user. Delmar Nauticul

9. Berserk - Increases strength, speed, and endurance at the cost of the user's humanity. Puts some strain on the user's body. Indigo Tinctor

10. Virtuous - Creates wings of light that have healing properties. Tires the user out and can damage the user's body. Dahlia Violetto

11. Expansion - Allows the user to grow to massive proportions, increasing the user's size and strength. Time of use inversely proportionate to the size desired. Ginger Spyce

12. Guardian - Creates a mech-like forcefield around the user that can attack and defend. Drains the user's stamina during use. Can be penetrated with significant force. Olive Fortech

13. Delight - Creates thick, airy foam that can cushion impact of enemy attacks. Dissipates in strong winds. Strawberry Crème

14. Attraction - Allows the user to increase or decrease the effects of gravity on anyone and anything around him. Any changes affect himself as well. Whit Choclatte

15. Cat Claw - Extends and sharpens user's nails to turn them into claws. Useful for attacking or climbing. No significant weakness. Tira Misu

16. Wild Child - Negates all pain during use, allowing the user to continue attacking when struck. All injuries sustained can be felt after the semblance wears off. Tutti Früti

Please let me know what I can change and improve on.