Magmatic Chasm

Creatures without flying can't block this turn.

Shadows over Innistrad Remastered

The Needle's Eye, a seldom-used passage that winds through Stensia's mountains, carries travelers close to Ashmouth—too close, some would argue.

Shadows over Innistrad

"Our shamans assert their mastery over the land, thwarting the lesser clans' attempts to stand in the way of our dragonlord."
—Allek, Atarka hunter

Dragons of Tarkir

Because Magmatic Chasm’s effect doesn’t change the characteristics of any permanents, the set of creatures affected by Magmatic Chasm is constantly updated. Creatures without flying that enter the battlefield later in the turn won’t be able to block.