so if they didnt split would they have been fire electric ice and dragon type?
Dragon/Normal
Signature move: tri-atrack
>>28707221
Kyurem is only Ice-type because it was in a cold abyss for over 1000 years.
>>28707331
No it was already Ice type. It froze the abyss itself.
>>28707272
This, but likely a stronger, Dragon type Tri-Attack as its signature move.
Also,
>Ability; Pure Energy - gains STAB on Fire, Electric, and Ice moves
>>28707221
No they would only have been Fire, Electric and Dragon. Kyurem is only Ice because it lacks the Fire and Electric of the two others.