The only 2050 ATK monster in Yugioh is Skull Guardian, a Level 7 Ritual monster. Anything beyond that is either not a Normal monster, or not a Level 4.
I was expecting Alexandrite to be Mokuba's Level 45 reward. Kinda disappointed that didn't happen.
There's a lot of 2000 ATK Normals at this point. I'm expecting Gene-Warped Warwolf next personally. (Though I'd really want Mystery Shell Dragon, since we don't have the Wyrm type yet.)
There's only 1 2050 ATK monster in the entirety of YGO. Skull Guardian. (Who is a Level 7 Ritual Monster. Non-effect, so almost a Normal Monster, but not quite. Was one in several video games, though.)