You can find the cards with errors but going to the app and scrolling down on certain erratad cards
It doesn't matter whether that spell resolved, and it doesn't matter who cast that spell
While getting a Lightning Greaves is nice, many players will already have a copy and Everlasting Torment is a fringe card at best
Counter Doublers Counter doublers may seem like win-more cards because they don't proliferate and don't add counters themselves, but watch the game go from a crawl to leaps and bounds when Deepglow Skate enters
If not, you sit and draw ramp, and more ramp, and struggle to draw enough Dragons
The -3/-3 from Locthwain Scorn is enough to take down most of the one, two, and three mana creatures in the format