Ignoring how ridiculous "please ban this card because it's good against my deck" is
Wait until you hear about all the cards that already exist to defend against it. Cards that exile. Cards that destroy. Cards that bounce. Cards that counter. Cards that block without dealing damage. Cards stop you from being targeted. Cards that remove the ability. There is no format in all of Magic's history where "my deck folds to a resolved Screaming Nemesis" is anything other than a lifegain deckbuilder's skill issue.
There, fixing the issue was pretty easy. You just have to actually play the cards that defend against it.
Ahayzo#17648
Ignoring how ridiculous "please ban this card because it's good against my deck" is
Wait until you hear about all the cards that already exist to defend against it. Cards that exile. Cards that destroy. Cards that bounce. Cards that counter. Cards that block without dealing damage. Cards stop you from being targeted. Cards that remove the ability. There is no format in all of Magic's history where "my deck folds to a resolved Screaming Nemesis" is anything other than a lifegain deckbuilder's skill issue.
There, fixing the issue was pretty easy. You just have to actually play the cards that defend against it.