I had a similar issue today 21/08/2025, which is worrisome as this post has been here 2 years ago. I had a dusk rose reliquary in the graveyard, more than 2W in untapped resources and all my artifacts on the field were either tokens or mana value 2 (1 legion extruder, 2 fabrication foundry). The game did not allow me to exile the extruder nor the second foundry (let me click on the tokens which was not enough to activate).
Dyphon#43875
I had a similar issue today 21/08/2025, which is worrisome as this post has been here 2 years ago. I had a dusk rose reliquary in the graveyard, more than 2W in untapped resources and all my artifacts on the field were either tokens or mana value 2 (1 legion extruder, 2 fabrication foundry). The game did not allow me to exile the extruder nor the second foundry (let me click on the tokens which was not enough to activate).