Hello, judges! The Missed Triggers Project has released a guide for Throne of Eldraine, identifying a total of four triggers that upgrade when missed; two generally detrimental, two symmetrical. We've also identified a few other tricky concerns in the set, such as the only Adamant Trigger, where the rest are replacements or spell effects… And we've provided our defense of Murderous Rider's trigger as not generally detrimental, a verdict that may surprise some folks. Details are all below:

Throne of Eldraine Missed Triggers Guide

Edited Beau (Oct. 1, 2019 12:52:09 PM)

Hello again, judges! The Missed Triggers project is back with an update: Murderous Rider has been moved to “generally detrimental”, from its previous assessment. This card was the subject of debate even before the set released, and after a month of seeing it fielded, opinions among judges and players strongly align with the new evaluation. A more in-depth explanation can be found in the Throne of Eldraine guide, but the simple version is:
(1) This card is easier to access from the graveyard than from the bottom of the library, which means (2) that the conclusion of the “vacuum test” is a weaker argument than usual; it's not enough to outweigh the fact that (3) players will nearly always prefer this card being in their graveyard.