Linrei's Protection is a fast spell card.
How to Get[]
After purchasing the Promises by Firelight campaign, beating a mission unlocks a playset of Linrei's Protection.
Premium versions of Linrei's Protection also unlock if the premium campaign is purchased. Without it, the premium cards can be crafted for 
Shiftstone, after being unlocked in the mission.
Strategy[]
Transpose can be thought as a better version of this card, as it's much cheaper and instead of drawing a random card, that could be useless, you get to choose exactly the one you need at the moment.
History
| 1.49.0.7017 | Released in Promises by Firelight. |