Black and White Kyurem

I managed to obtain the entire Tao Trio,however something went wrong when I fused Kyurem and Zekrom.Normally,Kyurem’s Scary Face will become the respective dragon’s Fusion move and Glaciate will become the form’s signature move(Ice Burn for White,Freeze Shock for Black),but Kyurem’s moveset did not change when I fused it.I understand it may be a daunting task to program moveset alterations for Kyurem’s form changes,but maybe that could be something to work towards.