Yu Yu Hakusho1992

Kurama:
The flame took its toll on Hiei.

Kazuma Kuwabara:
What?

Kurama:
To summon the dragon, Hiei must use his own spirit energy as bait to lure it from the pits of Spirit World. His technique only works if he can emit a tremendous amount of energy for a prolonged period.

Onji:
[chuckling] Yes, you are correct.

Kurama:
Hiei was in peek condition when he used the Darkness Flame against Zeru, and even that wasn't enough power for him to control it. The beast nearly took the hook along with the bait.