Is Xolatoyac, the Smiling Flood legal in Standard, Modern, and Commander?

Xolatoyac, the Smiling Flood is legal in: Legacy, Vintage, Commander, Historic.

Xolatoyac, the Smiling Flood

Q: What type of card is Xolatoyac, the Smiling Flood?

Xolatoyac, the Smiling Flood is a Legendary Creature — Salamander Serpent. Its oracle text reads: "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. Power/Toughness: 6/6"

Legendary Creature — Salamander Serpent

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.

Power/Toughness: 6/6

Set The Lost Caverns of Ixalan Commander

Rarity Mythic Rare

Mana Value 6

Artist Campbell White

Collector # 8

Scryfall