If you don't play enough removal, don't complain about problematic creatures from opponents
Last night I played a bracket 3 game against Bant +1/+1, Jund Lands and Grixis reanimator. Turn 5 I drew and cast an [[Elesh Norn, Grand Cenobite]], removing a lot of mana from the Jund player and a mana dork from Bant. Yes, I know that is a scary card and it can make people salty. I still like it a lot in creature based decks as a way to shift the balance in combat.
The Bant player proceeded to promptly clone the Elesh Norn so that the two of us were basically unaffected while the others could not play creatures. The next two turns I played some Initiative creatures and durdled around with a removal ready for the Bant players Elesh Norn if needed. I expected someone to boardwipe or at least spot remove my Elesh, but no one did. All three other players kept durdling around a little, but not doing much.
On the third turn, I drew [[Multiversal Incursion]], and it was copied twice by [[Tomb of Horrors Adventurer]]. The resulting Initiative triggers combined with 4 Elesh Norns on my side was enough to finish the game.
One of the opponents was very salty about Elesh Norn being played in the first place, another about it getting copied. I can understand the frustration. However, she stuck around for three turns unprotected, and no one even attempted to remove her.
I don't feel like I am wrong for playing the card in Bracket 3. I also didn't enjoy winning that game, considering that there was absolutely nothing done to stop me all game.