mtg lotr card Horn of the Mark (LTR-241) - The Lord of the Rings: Tales of Middle-earth and fear no Darkness OBM reprint!!! 🚨 Plus many

Expect more to be revealed as we get closer to launch

If, during your declare attackers step, Ursine Monstrosity is tapped, is affected by a spell or ability that says it can't attack, or hasn't been under your control continuously since your turn began (and doesn't have haste), then it doesn't attack

The best example of this is mill, which meant to put cards from your library into your graveyard long before it was formally codified in Core Set 2021

This is partly because of the new rotation, and serves as a perfect jumping-on point for new players

You can fully get rid of your opponents creature with some additional investment without the fear of having it return the battlefield when yours leaves