design for @bonboro's FakesterHunter2026!
Han Ze-Ku
The Ice Rink Wyvern
Element: Ice
Ailment: Frostblight
Weakness: Fire
A keystone species of large bird wyvern a bit shorter than a Seregios that, despite living in the Torrential Forest where much of the water is poison and many of the plants are as well, is pretty much intolerant to poison. This has forced it to develop a variety of unique adaptations and behaviors.
It eats leaves and fruits of the few non-poisonous plants it can find. Its ice sac simply stores ambient humidity, which it chills and releases by redirecting its warm blood elsewhere. Its unique feet allow for swimming, walking on slippery surfaces, and perching on branches. Its wings are finger-like, allowing it to more easily "sculpt" the clay it brings to its nest, and it has both a scoop for a tail and opposable thumbs to carry more building materials at once. Its tail and head are both sharp like an axe to cut trees. In addition, the spines on its back channel atmospheric moisture and rainfall directly into its mouth.
A diagram of a standard Han Ze-Ku nest. They clear out the ground and kill any poisonous vegetation in an area by freezing them with ice. Using their axe-like beak and tails, they hack down the mangrove and other trees, and use their tails to haul them over to their frozen patch of ground. At this point, they pile the tree trunks up and freeze them together bit by bit, lining the construct with impermeable clay and mud as needed to hold everything together. The end result is a massive bowl. When it rains, fresh, clean water collects in this bowl; and the Han Ze-Ku may freeze this water to prevent evaporation. This produces a unique localized ecosystem that depends on Han Ze-Ku to survive. Because this fresh, non-salty, clean water is so valuable, other animals may attempt to steal a drink. Han Ze-Ku have grown extremely aggressive and territorial as a result, and will typically attack in a gang of 2-3 (one to two adults as well as a subadult nest-helper is the typical structure), pelting the enemy with ice until it retreats.
Fightwise, its ice breath disperses similarly to Pukei's venom clouds (the telltale sign is its wings flushing red with blood), it has a grab that it can slam you into the ground with, and its tail is flattened horizontally with sharp edges, sort of like Glavenus; and so can be used to slash at a hunter. It can fold the edges of its tail upwards to hold dirt and toss it at you like a catapult, hack at you with its axe-like bill, or pound you with the tail like Paolumu. It also does the classic bird wyvern hops and charges, as well as screaming attacks, but it's not quite as wild as, say, Garuga. A lot of its attacks start off with notable tells, as it is not a predatory wyvern and prefers to intimidate.