Whispersteel Dagger [Zendikar Rising Commander] Historic you may sacrifice another creature

you may sacrifice another creature or an artifact

Set: The Brothers' War Commander Type: Artifact Creature — Construct Rarity: Mythic Cost: {4}{B}{B} Menace

I lost track years ago

Set: Commander 2019 Tokens Type: Token Creature — Plant Rarity: Common

Urborg Haunt deals combat damage to a player

Whispersteel Dagger [Zendikar Rising Commander] Historic you may sacrifice another creatureSet: Zendikar Rising Commander Type: Artifact Equipment Rarity: Rare Cost: {2}{B} Equipped creature gets +2 +0. Whenever equipped creature deals combat damage to a player, you may cast a creature spell from that player's graveyard this turn, and you may spend mana as though it were mana of any color to cast that spell. Equip {3}