I don't know how "Boons" work, but I found this in the compendium and it would be fantastic for these builds (no god prereqs)
Pelor's Sun Blessing
The undimmed light of Pelor shines from individuals who champion his cause. They drive evil before them and bring solace to companions who fight alongside them.
Level: 3 [Has 6 different level variants]
Price: 680 gp
Property: If you deal damage to a target that has vulnerability to radiant damage, you deal extra damage equal to your Wisdom or Constitution modifier, whichever is higher.
Power (At-Will): Minor Action. You emit bright light in a 5-square radius. As a minor action, you can stop emitting light.
Power (Daily * Healing): Minor Action. An ally within 5 squares of you can spend a healing surge, and that ally gains a +1 item bonus to saving throws until the end of the encounter.
Unfortunately, each attack power may benefit from no more than 1 domain feat at a time.
I figured as much -- Thanks!