Xolatoyac, the Smiling Flood

Description

Xolatoyac, the Smiling Flood (LCC-8) is a Legendary Creature — Salamander Serpent. Whenever it enters or attacks you put a flood counter on target land making it an Island while the counter remains, and at the beginning of your end step you untap each permanent you control with a counter. It naturally slots into blue-green decks that benefit from changing land types and repeatedly untapping permanents for ramp, value, or combo interactions.