Valley Dasher didn't attack
In my game, my opponent played a Valley Dasher (KTK Premier Draft), and it didn't attack the turn it came down, even though it has to.
For clarification, the opponent's turn was
1. Play Jeskai Ascendancy
2. Play Valley Dasher
so no noncreature spell was played after jeskai ascendancy to untap the dasher
2
votes
Andeloth#49903
shared this idea
-
[Deleted User] commented
What seems likely is they played it in their second main phase