Kroxa, Titan of Death's Hunger [Secret Lair Drop Series] Tezzeret You may cast Brokkos

You may cast Brokkos

Set: The List Type: Legendary Creature — Eldrazi Rarity: Mythic Cost: {15} This spell can't be countered

Set: Alpha Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one basic land type with another

Set: Arabian Nights Type: Creature — Human Rarity: Rare Cost: {2}{R}{R} Damage that would reduce your life total to less than 1 reduces it to 1 instead

They just know

Kroxa, Titan of Death's Hunger [Secret Lair Drop Series] Tezzeret You may cast BrokkosSet: Secret Lair Drop Series Type: Legendary Creature Elder Giant Rarity: Mythic Cost: {B}{R} When Kroxa enters the battlefield, sacrifice it unless it escaped. Whenever Kroxa enters the battlefield or attacks, each opponent discards a card, then each opponent who didn't discard a nonland card this way loses 3 life. Escape{B}{B}{R}{R}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)