The dragon's body visibly weakened, the energy coursing through it fading quickly. Without the heart to constantly pump mana through his body, his body rapidly weakened.
With only its core to power, the dragon was a powerful being, but it didn't pose half the danger it once did. Even his magic wasn't that powerful anymore, as the zombie dragon drew energy from the dragon core to empower his spells.
"You don't need to hold him anymore, Treevor. I don't know why destroying the dragon's heart weakened him so much, but he won't be able to fight in his current state.' Athos spoke and Treevor obeyed, not wanting to waste any more of his amber energy.
The dragon wasn't resisting anymore, too busy with its own pain to care about anything.
'Boss, if destroying your heart doesn't work, we need to destroy your brain.' Treevor informed Athos, but it was too late.