1- Xposed installer
2-NFC screen lock
1- Install and activate Xposed
2- Install NFC screen lock mod and activate
3- Select option to have NFC on when screen off
4- Install Llama
5-Create event in llama to turn screen on with a nfc tag.
The role of Llama is to turn the screen on after nfc screen lock mod unlocks it.
Hope this helps someone