Fathom Fleet Swordjack 

Creature — Orc Pirate
Whenever this creature attacks, it deals damage to the player or planeswalker it's attacking equal to the number of artifacts you control.
Encore {5}{R} ({5}{R}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)
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Cards that do something similar expected a card that isn't here?
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Hellrider 81%
$3.15#5632
"Whenever a creature you control attacks, this creature deals 1 damage to the player or planeswalker it's attacking."