Breath of Fury attached doesn't have a -1/-1 counter on it.
Notable Prerequisites
Opponents cannot block creatures you control.
Steps
Deal combat damage using the persist creature that has
Breath of Fury attached.
Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach
Breath of Fury to the other persist creature, then causing you to untap all creatures you control and to get an additional combat phase after this one.
When the sacrificed creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
When the creature enters,
Celes's second ability triggers, putting a +1/+1 counter on each creature you control.