Bear in mind that Andrew had posted in another
thread that if you auto-kill a Monster, and there are Monsters left behind, a card like
Friendship Potion would not take away the rewards from the auto-kill. My last ruling was stating that because there was a Monster still in the combat, even if it was added later, that
Friendship Potion was a legal play, and all the rewards from the auto-kill remained, plus anything that
Friendship Potion said would apply to the
remaining Monster(s).