Outside of allies, its just a weaker Boromir, Warden of the Tower
Invent is going to reward decks that make the game go long and make use of the card advantage and toolbox-y effect that it provides
One of the biggest debates in the community is whether or not the Reserved List is a legally binding promise: could someone with a huge collection of old Reserved List cards sue Wizards if it started reprinting cards on the Reserved List
These upgrades provide more tokens, more mana, more value, and more consistency
It obviously is planning on finding the exact fatty you want to recur but it does have potential to be a good utility card in combination with a things like Deep Analysis or Jace, Vryn's Prodigy
If a player is unable to set up multiple copies of a basic Pokmon, they are vulnerable to Boss's Orders and Prime Catcher, both of which can disrupt a board state to the point where the game is unable to be won