There's no way you get a better creature for only 4 mana in the Oldschool format, which is also why it's heavily wanted
They want to collect them and play with them, but they also understand that these cards are likely to continue to gain value moving forward
I understand that making 3D CGI models is probably very difficult and commendable, but I just feel like those kinds of cards have no heart or soul
The main upgrade route for this deck is more enchantment auras or equipment to really drive home the fact that your board presence is inevitable, and you are going to start swinging at your opponents as soon as possible, and it's going to hurt
Convoke also had a big resurgence in March of the Machine and its Commander precons, adding some powerful cards to the Jeskai colors
Whenever this creature attacks, look at the top six cards of your library