Xolatoyac, the Smiling Flood

Set: Commander: The Lost Caverns of Ixalan (#8)

Rarity: Mythic

Type: Legendary Creature — Salamander Serpent

Mana Cost: {4}{G}{U}

Colors: Green, Blue

P/T: 6/6

Whenever Xolatoyac enters or attacks, put a flood counter on target land. That land is an Island in addition to its other types for as long as it has a flood counter on it. At the beginning of your end step, untap each permanent you control with a counter on it.