At the start of turn, with Tasmin hero power + Hogwash Basin, the minion in last position of my board only got 2 bloodgems and then died, but the rest of my minions got all the 3 gems.
I was expecting the Prickly Piper (less HP) to die, but my Dreaming thornweaver in last position got 1 less bloodgem at the beggining of the turn, and therefore was the one to die.
Video (https://streamable.com/zhq0hp)