Lavalanche [Commander 2018] Zombie Naga Set: Legends Type: Legendary Land

Set: Legends Type: Legendary Land Rarity: Uncommon {T}: Add {W}

Set: Commander Anthology Type: Legendary Creature — Zombie Dragon Rarity: Rare Cost: {3}{B}{B}{R}{R} Flying

Set: Conspiracy: Take the Crown Type: Legendary Planeswalker — Kaya Rarity: Mythic Cost: {2}{W}{B} 0: Exile Kaya

the answer may lie in joining the crew of the *Weatherlight* as they seek to rescue their abducted captain Sisay

If you searched your library this way

Lavalanche [Commander 2018] Zombie Naga Set: Legends Type: Legendary LandSet: Commander 2018 Type: Sorcery Rarity: Rare Cost: {X}{B}{R}{G} Lavalanche deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls. Alara's burning blood cannot be contained by mere earth and stone.