It said that to be able to play an Uncommon Fighter, you have to skip your next Energy phase. So yeah, I think you can still attach that Air Energy, but you can't do so after this turn. I'll put that on the list for you.
I play Vyt's Energy Tentacle as my Active and Vyt to my Bench.
I attach a Light Energy to Vyt's Energy Tentacle.
I end my turn.
Jina (0 KOs): Active: (A) Kite - 6/6 HP Bench: Blin - 7/7 HP
Vyt (0 KOs): Active: (L) Vyt's Energy Tentacle - 6/6 HP Bench: Vyt - 6/6 HP[rand=24797729333255325652531307445042366562968935751866228846996353545]