What type of card is The Chaos Keeper?

Q: What type of card is The Chaos Keeper?

The Chaos Keeper is a Legendary Creature — Elemental. Its oracle text reads: "The Chaos Keeper enters with a sealed Magic booster pack of your choice under it. (You provide a new pack each time.) Whenever The Chaos Keeper deals combat damage to a player, reveal its cards and put one of them into your hand. (Don't open the booster pack until the first time this ability resolves.)"

The Chaos Keeper

Legendary Creature — Elemental

The Chaos Keeper enters with a sealed Magic booster pack of your choice under it. (You provide a new pack each time.)

Whenever The Chaos Keeper deals combat damage to a player, reveal its cards and put one of them into your hand. (Don't open the booster pack until the first time this ability resolves.)

Set Unknown Event

Rarity Rare

Mana Value 2

Collector # RZ02c

Scryfall