I am about to judge a local legacy event, and I realized that the new split card rules may effect a player if they're bringing miracles and have Top with Wear/Tear in their 75.

Have these new rules taken effect yet? Or do they come in when the new set is released?

Hi,

With the exception of the prerelease, any rules changes won't take effect until Amonkhet's release on April 28th. So unless you're playing in a prerelease event for Amonkhet this weekend, the split card rules change won't go into effect until the 28th.

Nathan Long
Magic Rules NetRep