Just a note, Liquidation is 85 base power. And it is being investigated in the thread what Water Bubble does, but it certainly doesn't trigger on Will-O-Wisp.Here's a video recording of a SE crunch (80 * 2) doing as much as a STAB Liquidation (80 * 1.5)
https://sendvid.com/ij9u2pa1
Maybe since water bubble blocked will-o-wisp it did more?