wuLegendary Creature — Spirit

Flying

Whenever Dorothea, Vengeful Victim attacks or blocks, sacrifice it at the end of combat.

Disturb 1wu (You may cast this card from your graveyard transformed for its disturb cost.)

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Dorothea's Retribution

Enchantment — Aura

Enchant creature

Enchanted creature has "Whenever this creature attacks, create a 4/4 white Spirit creature token with flying that's tapped and attacking. Sacrifice that token at the end of combat."

If Dorothea's Retribution would be put into a graveyard from anywhere, exile it instead.

"Every day a Voldaren draws breath is a day I cannot rest."