I’m a bit confused by Bone Curse. The devs have said on discord that the damage (& freeze) from Bone Curse is your damage/freeze so if you want to make it do more damage/freeze, you need to buff player damage/freeze.
So one would assume therefore that any kills should be counted as player kills (& proc the player’s “on kill” stuff, like Blood Pact) rather than minion kills. I’ve taken the Brittle Bones node (cull @ 18%) & I don’t seem to be getting any Blood Pact buff, even from mobs that require many multiple hits (therefore it gets killed by Brittle Bone’s cull rather than a crit from a minion).
I’m also not entirely sure that the freeze is actually increased by the player’s freeze multi. I’ve got 5 points in Bitter Winter for a freeze rate of 100, I’ve then equipped a Last Steps of the Living for +393% (with an Exsanguinous to make sure I’m actually at low life) & a bunch of other freeze multi affixes such that I’ve got 998% freeze multi. And while I am freezing normal mobs a lot, I would have assumed that a freeze rate of ~1k & around 40 minions with a cast speed of at least 44% should be enough to keep bosses freeze locked?