Or Dearka could just go:

Dearka: Look there Yzak! The Strike in disguise as _____(insert gundam Dearka wants Yzak to kill)!
Yzak: KUSO!!!!!!!!! *SEED Mode Sound*
His Zaku suddenly gains an infinite energy supply and is able to pull off superhuman stunts
Yzak: DIE STRIKE DIE!!!!!!!!!!!!!!!!!!!!!!!