Iron Mastiff

Whenever this creature attacks, roll a d20 for each player being attacked and ignore all but the highest roll. 1—9 | This creature deals damage equal to its power to you. 10—19 | This creature deals damage equal to its power to defending player. 20 | This creature deals damage equal to its power to each opponent.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6onlu3h881pb1hultcznpv.