As you can assume from the title, I just started my first run on Tactician difficulty.
I decided to do a gimmick run of four Summoners. They would use different weapons. one would be a dual-wielding fighter, another a single-dagger shadowblade, one a ranger, the fourth a wand.
I fought the level 2 Turtles on the hidden beach. They exploded on death. At first I was a bit mad, then I realized that the explosion was actually my fault for not using Examine on the Turtles. Surely, if I had bothered to do that, I would have realized that they had the Unstable Talent and would explode on death. So I reloaded.
The enemies do NOT have the Unstable Talent. So now I'm back to "a bit mad".
I don't mind if enemies explode on death, even if it screws over melee builds more than it should. I DO mind not having any warning that can happen. The difficulty is not called "LOL, pranked - better reload!", it's called "Tactician".
Enemies which explode on death should have some indication which they will do so ahead of time. Like carrying a big bomb on their backs, or having a special status effect, or having "Unstable" in their Talent list.