Helm of Obedience [Alliances] Promotional Cards you may exile a card

you may exile a card from your hand with a number of time counters on it equal to its mana value

Set: Foundations Prerelease Promos Type: Legendary Creature — Wizard Dragon Rarity: Mythic Cost: {4}{U}{R} Flying

Set: Jumpstart 2022 Type: Creature — Hydra Rarity: Mythic Cost: {X}{G}{G} Primordial Hydra enters the battlefield with X +1/+1 counters on it

Set: Doctor Who Type: Instant Rarity: Uncommon Cost: {1}{U} Paradox — Draw a card for each spell you've cast this turn from anywhere other than your hand

Set: Mythic Edition Type: Legendary Planeswalker — Sarkhan Rarity: Mythic Cost: {2}{G}{U}{R} +1: Draw a card

Helm of Obedience [Alliances] Promotional Cards you may exile a cardSet: Alliances Type: Artifact Rarity: Rare Cost: {4} {X}, {T}: Target opponent mills a card, then repeats this process until a creature card or X cards have been put into their graveyard this way, whichever comes first. If one or more creature cards were put into that graveyard this way, sacrifice Helm of Obedience and put one of them onto the battlefield under your control. X can't be 0.