The light sigh of its breath whistles through its bones.

Modern Horizons 3 Commander

Mortivore

Mortivore's power and toughness are each equal to the number of creature cards in all graveyards.
{B}: Regenerate Mortivore. (The next time this creature would be destroyed, instead tap it, remove it from combat, and heal all damage on it.)

Commander Anthology Volume II

Mortivore's power and toughness are each equal to the number of creature cards in all graveyards.
{B}: Regenerate Mortivore.

Commander 2011

Salvat 2011

Duels of the Planeswalkers

Tenth Edition

Ninth Edition

Mortivore's power and toughness are each equal to the number of creature cards in all graveyards.
{B}: Regenerate Mortivore. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Odyssey

Mortivore's power and toughness are each equal to the number of creature cards in all graveyards.
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B: Regenerate Mortivore.