Removing the Super Haste Language and change the creature type and name and it would be a card you could print in the next set
It does compete for a slot with Liquimetal Torque, though which is very underplayed alongside Sword of Sinew and Steel and other staple disenchants
Costing six and not being able to immediately gain any life means you will have to do quite a lot of work just to get to stage you can make the Wurmcoil with any semblance of safety, if at all
Later on, as the Oathkeeper may get less useful due to opponents having more mana, he can be traded in to resurrect a planeswalker to the battlefield
Meanwhile, in the case of another ultra-rare bonus card from the past, Persistent Petitioners, different versions have ranged from $300+ down to $14
Its a very neat green card