Helm of Obedience [ALL - 163] Printing:Normal Rules Text Contains: Any number

Rules Text Contains: Any number of target players each discards cards from his or her hand equal to the highest converted mana cost among permanents you control

When Cavern Harpy comes into play

you may spend mana as though it were mana of any color to cast it

then put the rest on the bottom of your library in a random order

Set: Scarlet & Violet: Twilight Masquerade Type: Grass Rarity: Rare Retreat cost: Colorless

Helm of Obedience [ALL - 163] Printing:Normal Rules Text Contains: Any numberRarity: R #: 163 Creature Type or Sub Type: Artifact Rules Text Contains: X, T: Put the top card of target opponent's library into his or her graveyard. Continue doing this until you have put X cards or a creature card into that graveyard, whichever occurs first. If the last card put into the graveyard is a creature card, bury Helm of Obedience and put that creature into play under your control as though it were just cast. X cannot be equal to 0.