i think in my personal opinion that it's pretty exploitive and ruins ever hiring a beast in a arcanist crew, i think they could easily fix the combo by just making the IE card say "When this model is killed, draw for cards" remove the sacrificed
should also help balance out the upgrade more and stop making people should "unfairly OP upgrade" everytime they see it.
so many non arcanist friends i have keep saying when they see it that they'd just plop IE on everything because it's so good, no drawbacks, which i actually think is true :/