Horn of Deafening [Legends] Artifact Creatures can't attack you unless

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you

{T}: Regenerate target Elephant

Set: Dominaria Prerelease Promos Type: Legendary Artifact Rarity: Mythic Cost: {0} {T}: Add one mana of any color among legendary creatures and planeswalkers you control

return it to the battlefield under its owner's control with a -1/-1 counter on it

As Watery Grave enters the battlefield

Horn of Deafening [Legends] Artifact Creatures can't attack you unlessSet: Legends Type: Artifact Rarity: Rare Cost: {4} {2}, {T}: Prevent all combat damage that would be dealt by target creature this turn. "A blast, an echo . . . then silence."