A proper feel bad moment when my opponents left most creature blocks my attacking creature.
Post combat i point my damage based removal on their left most creature, only to discover that arena has moved the creatures around post combat… causing me to kill an unintended creature. Proper madening.

I cant imagine why moving around the creatures would be a feature? It does in no way mimic real play, moving a creature back and forth. And it caused this and previous proper feel bad experiences.

Could you not randomly move the creature around?