Care Aid's Shield:

Name: Care Aid's Shield
Complexity: Easy
Cast Time: Ritual
Initial Cost: 3
Upkeep Cost: 1
Usable By: Either
Hidden: False
Effect:
If successful, the caster may add a d4 to any roll made to defend or protect, once per session. Alternatively, this spell may be cast at Hard complexity, with an upkeep of 2 to add a d8 instead."
Creator: Unknown