Game data updates to the wiki have been started.
A system has been added that will automatically add divination cards and other items to the item acquisition sections where appropriate. Entries added by this system will be shown as automatic in the item acquisition section.
Some pages will need to be updated to include
upgraded_from_disabled=true if they are not eligible for the system.
Some further details on what needs to be done can be found on Path of Exile Wiki:To-do list/Automatic upgraded from and issues can be posted on the talk page.
Can have up to 2 additional Traps placed at a time
20% increased Trap Trigger Area of Effect
15% chance to gain a Frenzy Charge when your Trap is triggered by an Enemy 
Master Sapper is a notable passive skill that grants increased damage and trigger area for traps. It also raises the active trap limit by two and grants a chance to gain a frenzy charge whenever a trap is triggered.