D&D 5E Cleric's Divine Intervention

[Ilbranteloth]

Thoughts on Divine Intervention:

What would be the impact of changing Cleric's Divine Intervention to roll a d20 rather than percentile dice?
(When I first read the description, this is what I thought it was, and thought, "Hey! That's pretty cool!" When I found that it was actually percentile dice, it was, "Oh. That's rather lame, actually.")

What if it started at 1st Level?

What if it was useful once per day rather than once every seven days?

Yeah, I'm of the opposite opinion. I removed it as a cleric ability altogether. Too world changing for my tastes for any cleric of that level to be able to call on their Deity to intervene once/week.