When Lucario stopped creating any more stone slabs, presumably to Double Up, Ignis began "charging" Diamond Cutter. Roughly 5 seconds later he released the thin pressurized Hydro Pump, sweeping his head and hence the move once across the battlefield. During that sweep, Diamond Cutter cut through around four-fifths of the stone slabs, and shortly after Diamond Cutter passed through, the upper portion of the stone slabs fell off at exactly the height that the thin water stream passed through.
Pokemon Alternate Universe Adventures
Anime & Comics · Azrail93
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