The Tank Guard ascending from B level to A level requires nine million, but now upgrading to S level needs one hundred million metal energy.
Having it absorb the metal energy from the Black Gold Source Stone directly cut the amount by half, and after subtracting the ninety million reserved for Dark Night, only a little over twenty million remained.
Even the metal energy from the Ascender's Source Crystal wasn't enough.
This calculation left Li Ming slightly dazed. Just like that... it's gone?
But it was only a brief confusion. After all, metal energy is meant to be used to enhance strength; it won't grow on its own.
As for the control over the Ascender's Source Crystal, there's no rush. Its more significant role is to assist, which looks very powerful in the long run.
But for now, he should focus on enhancing his strength first.