On multiple occasions I have managed to strike fatal damage to my opponents Razia before my attack phase was over. While the zero health Razia is still on the board, my next creature deals damage to my opponent. Rather than one strike to the opponent accompanied by the Razia damage back to me, it gets stuck in sort of a damage loop- my creature's damage, then Razia's, then mine, then Razia's, etc. This continues until one of us is dead.
I'm not sure that's a bug if you both have a razia on the board. They feed off of each other.
🤦
That's very possible. It hadn't happened to me before yesterday, but it happened three times yesterday. It was all while playing TotP. I'm pretty sure I had Razia in all of those decks.
Thanks @Julie71