Xer'Sai, League of Legends Wiki

Xer'Sai are Voidborn creatures that plague the southern deserts of Shurima. Kai'Sa and Taliyah faced the Xer'Sai while going to Xolan. Ezreal came across the Xer'Sai lair. They are the size of big dogs on average, but can be smaller or much bigger.   Rek'Sai, as the queen, is by far the largest and most dangerous of her species. The Xer'Sai burst from their small burrows and ravage anything nearby, to the detriment of desert caravans. Once dead, the Xer'Sai decompose at an abnormally rapid rate

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