Undertale: Libertas Ritualis (LBx2 take)

After a hundred times of killing Sans, he wakes up to see him about miserable failures, but Gaster forgives him like he done well, so he make a plan to stop the human, using those crystals in Waterfall with different colors, Gaster was experimenting to make a serum to inject Sans itself, now he is ready for this Liberty Ritual.

Phase 1:

When you encounter sans, his atk stats are 3 and his def attack is 2, so you'll be easy to dodge attacks.

Phase 2:

After you slash sans with one hit, the crystals forming out of his arm and crack.

He has a green crystal axe to wreck it down.

Phase 3:

After you slashed him again, he was vulnerable to kill him, so Gaster control Sans, the crystals are getting more stronger, before his arm got lil bigger, ready to his final strike.

(I'm making some au chart mwahahaha)

@GoreyMonster69