The EntityLivingAttacked Event is fired whenever an entity is being attacked.
It can be canceled to stop the entity from taking damage.

You will need to cast the event in the function header as this class:
crafttweaker.event.EntityLivingAttackedEvent
You can, of course, also import the class before and use that name then.

PlayerDeathDrops Events implement the following interfaces and are able to call all of their methods/getters/setters as well:

• ILivingEvent
• IEventCancelable

The following information can be retrieved/set during the event:

ZenGetter	ZenSetter	Type
ZenGetter damageSource	ZenSetter ​	Type IDamageSource
ZenGetter amount	ZenSetter ​	Type float

The following information can be retrieved/set during the event:

ZenGetter	ZenSetter	Type
ZenGetter entityLivingBase	ZenSetter ​	Type IEntityLivingBase
ZenGetter canceled	ZenSetter canceled	Type bool

ZenMethods

• event.cancel(); Method, returns void (nothing). Can cancel the event and stop something from happening