Night's Cavalry

Whenever Night's Cavalry 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.)

They were once led by the Fell Omen.