Lemming, Grandming

Lemming (Pikachu+Snorunt): After their release, they panicked when they faced this new world, and all of them scurried to the North. A tale has been told of their perilous journey to a wasteland. They dig tunnels in the snow, looking for plants that can sustane the cold weather. The crystal on its forehead is used to focus their ice energy so it doesn't go out of control.
It is said that a group of Noctowls followed the Lemmings to the North, only to become a new sub-species of this pokemon.
 
Grandming (Raichu+Glailie): They are in perfect control of their ice powers so the crystal has gone. Their claws are very sharp, but they use them to fend off attackers.