Well, ALMOST never...
Some further thoughts on support cards in limited formats:
I recently argued in a Dojo post that Grindstone is rarely a good support card for T or T/ST…
This is a preview. The full article is available at https://classicdojo.org/b982/bo.980430cel.txt.
If you are the author of this article, please get in touch — I'd love to host the complete text with your permission. Learn more about this site's approach to copyright.