>Name
Antarctick
>Type
Bug/Ice
>Ability
Shed Skin / Regenerator (Hidden Ability: Flash Fire)
80 HP/75 ATK/180 DEF/85 SP. ATK/170 SP. DEF/10 SPD
>Moves
Earth Power, Earthquake via TM like everything else, maybe a few other ground moves to cover Fire, Fighting, and Steel.
Soak and Absorb, Mega Drain, and Giga Drain to cover other weaknesses as well as heal HP while attacking.
Stockpile, Defense Curl, and possibly Iron Defense for bulk.
Ingrain, Aqua Ring, Recover, and Rest via TM for recovery.
Some other status moves, maybe something with sleep, and an almost even mix of physical and special moves, ranging from Bug, Ice, Grass, Water, and Ground.
>Why?
The water bear is a microscopic insect in the same family as ticks and fleas. It's able to fully shut down its entire body and even survive being frozen alive only to come back to life when it thaws out. If anything were to be a viable Bug/Ice Pokemon, this thing would be it.