So...what part was untrue? You disagreeing does not make my statements untrue.
It IS a 3% buff. The heal potency IS 100, lasting 15 seconds and only if your crest is broke. Don't roll in on someone saying they're lying when they aren't.
Are these abilities strong? Yes, but not wildly so. You say it's about as strong as Litany, but so what? You want it to be notably weaker? And a heal ability that can only be used if your crest is up and takes more than 10% of your health? Very conditional.
The only thing that needs work is the raw damage. Their utilities are fine as they are.