Corrupted insight, but it doesn’t reduce the cost of the minion drawn (I played the card next turn and it cost 4 mana), [Here is the pic](https://imgur.com/XAnFdzd)
It’s hard to tell because the icons are so small, but in the history bar on the left, the attacking minion at the bottom looks like a Nerub’ar Weblord.
That minion has the effect “Minions with Battlecry cost (2) more.”
So that cancelled out the savings from Insight.
Yeah I just saw it and forgot that hedanis is a battlecry, I thought it was just overheal