The other caveat I want to advance is that I’ve only run level 1 combats. D&D combats slow down at higher levels and I am unwilling to generalize my experience of Tier 1 DH combats to higher tiers.
Yeah we shall see.
However, I don't think that going from 2 Domain cards to 5 is particularly likely to cause slow-down, and I don't see any Domain cards at higher levels that cause slow-downs.
The biggest causes of higher-level slowdown I'm aware of are:
A) Analysis paralysis or analysis slowdown becoming a bigger and bigger issue as people get larger and larger arrays of spells/abilities. 5E mitigates this a fair bit and it helps it to slow down far less at higher levels than 3E and 4E did. We'll see pretty quickly if five cards causes a problem two doesn't but I'll be very surprised if it does. And that's the max.
B) Out-of-turn actions (Reactions, AoOs, Immediate actions, Interrupts, etc.) gradually becoming more common as you go up levels. This absolutely clobbered 4E and hit 3E too, and hits 5E a little bit.
C) Math getting more complicated. This clobbered 3E and hit 4E too (though not nearly as hard), and 5E mostly but not entirely escapes it.
None of that would be expected to hit DH, but maybe there will be some unaccounted-for factor?
That being said, I think my son’s usage of Fear was more typical of a less-experienced GM porting over from 5e.
Yes I suspect so. However I do wonder if the typical GM of DH will be from that background. I wouldn't expect someone new to RPGs to do that, because the book explicitly says not to do that lol. I also wouldn't expect someone with varied RPG experience to do that. Definitely some people will though. But even with them, I think it'll be a phase that they go through and eventually get past as they get better at DH specifically. There's always a learning curve with a new system.
If I'm remembering correctly there were 2 versions of the monsters released... a standard Daggerheart version and an AoU version that was souped up specifically for Matt's game. Which again i find interesting that he used more powerful versions vs. standard.
You got any evidence for that? I mean, again, I don't have the exact figures but I do remember when someone wrote Velk up from the game he appeared in he did 1d12+3 just like he does in the PDF on the site. And I don't remember Matt saying that or anyone previously claiming he did, rather than he juiced the fights by using a higher encounter budget. I'm not saying it's definitely not true, but it seems like it might be misremembering of the encounter budget thing.