Bukkit

Valid potion effects for entities:

• DAMAGE_RESISTANCE - Decreases damage dealt to an entity.
• FIRE_RESISTANCE - Stops fire damage.
• HARM - Hurts an entity.
• HEAL - Heals an entity.
• INCREASE_DAMAGE - Increases damage dealt.
• JUMP - Increases jump height.
• POISON- Deals damage to an entity over time.
• REGENERATION - Regenerates health.
• WATER_BREATHING - Allows breathing underwater.
• WEAKNESS - Decreases damage dealt by an entity.

Please PM thebiologist13 if an effect doesn't work.