In early version, Yamabuki Infinite laser trick is used to clear mob waves in Infinity Abyss due to it's high effiency (large AoE dmg + huge EP gain) and "infinite Spacetime Lock" while not really a game-breaking feature.

To perform Infinite laser, player can hold attack button until before reaching overheat state then tap the Ulti button then tap Ulti again to disable.

This trick was later fixed in version 2.2 by adding interrupt function if player enable Ulti.

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