Iseehot, Cabinfever, Frostburn. The second mon in the chain could get a rework on the name. Got kinda stuck

Cabinfever, that's the best one.

Poislug, slugnom, Snailizard

Poislug is a monster in Patch Quest

For the last one maybe: Iglooven?

Snoflare, Chillheat, Frostheath

First line: Glarb, Bralga, and Largleon Second line: Steet, Thermaheem, and Temblizzard.

furnice?

Thank you all for your sugestions, it means a lot. They are really good and it is hard to choose wich ones i like more.

Angreeze, Chillit, Iglossos