A rare example of making a cantrip no one uses into one that even fewer people will ever use. I am amazed at how terrible they made it.

HAHAHA! This one is hilarious. Resistance was bad as it was, now it's abominable. HAHAHA!

This requires minimum a Upgrade cantrip per level, 5 / 11 / 17 an additional 1D4 each upgrade.

I guess I will continue to use the UA version of Resistance that was a reaction to cast. My players have been using those versions of guidance and resistance and they have been great. Way better than whatever this is.

On first glance this cantrip is terrible, however, consider the following:

Level 5 PCs face off against a pack of thugs. The cleric casts resistance to bludgeoning damage on the barbarian as she wades into enemies. Each thug attacks twice with advantage (pack tactics) and lands at least once hit for 1d6+2 (5) bludgeoning damage. The barbarian reduces the damage by 1d4 against each thug that hits her one or more times (once per turn; each thug has its own turn) and then applies resistance to bludgeoning from rage. If four thugs hit the barbarian at least once each, that saved 10 damage before applying resistance from rage.

It's certainly not glamorous, and it's niche/situational, but it can work.

If it scaled 1d4 per tier like other cantrips, it would be really nice in those situations, potentially reducing the damage from some hits to 0. The challenge is how often is saving those hit points worth the cleric's concentration? Definitely not good in a boss fight, but against lots of minions, I think it can work..