I know it stops hindering abilities, but what does that include?
All these abilities:
* Battle Armor * Clear Body * Damp * Dry Skin (including the added damage from Fire moves) * Filter * Flash Fire * Flower Gift * Heatproof * Hyper Cutter * Immunity * Inner Focus * Insomnia * Keen Eye * Leaf Guard * Levitate * Lightningrod * Limber * Magma Armor * Marvel Scale * Motor Drive * Oblivious * Own Tempo * Sand Veil * Shell Armor * Shield Dust * Simple * Snow Cloak * Solid Rock * Soundproof * Sticky Hold * Storm Drain * Sturdy * Suction Cups * Tangled Feet * Thick Fat * Unaware * Vital Spirit * Volt Absorb * Water Absorb * Water Veil * White Smoke * Wonder Guard
http://www.smogon.com/dp/abilities/mold_breaker