A replay of last game should be primordial because I was playing ranked standard and for 2 games during the countless games that I have done ... there was 2 specific games and let me explain ...

I was winning the game , the opponent had 3 health left and I had 8.
I had a massive lineup of creatures and attacked with all of them ... over 15 creatures and NO damage went in at all , ZERO and I clearly don't recall the opponent casting any spells or anything cards to prevent damages dealt this turn.

With a last game replay, I could at least see what was my mistake and if the opponent DID cast something I didn't see or something.