This is a pretty mediocre recursion mechanic, but keeping in mind that its an uncommon with background, I suppose its fine
Creature Artifact - Assembly-Worker Color tag templates(None) Adrix and Nev, Twincasters Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .) If one or more tokens would be created under your control, twice that many of those tokens are created instead
The List is unbalanced, having 35 mythics, 139 rares, 85 uncommons, and 41 commons
The reason it makes the honorable mention list is that this effect also includes itself, providing a higher floor
Collector Boosters are also (sadly) much more likely to get you the sets rarest cards, since they include all foil and alternate art treatments
If guidance gets more votes or the vote is tied, draw a card