I was listing details. Not making a claim one way or the other. One cannot balance Holy Light without mentioning Luciferin and Heal.
My opinion is that, excluding events like War/Trials and excluding the situational bonus against SoSac, Holy Light is inferior to Luciferin.
Cost: I would prefer to pay 2 over paying 1
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. Likewise I would prefer to pay 1 over paying 0 with mulligan interference.
[Winner: Luciferin]
Effect: Excluding the cases I mentioned I was excluding, Luciferin is Holy Light+.
[Winner: Luciferin]
Additional: Luciferin does not have an Elemental Hate mechanic.
[Winner: Luciferin]