PoE2 - Trampletoe + Frost Wall Combo Explained (And Why You Shouldn't Use It)

CORRECTION: At 03:08 and 05:30 I mention Archmage is applying and that Overkill is spell damage - I didn't realize it was just Greater Lightning Bolt consuming mana from Archmage instead. Please disregard that bit.

Just a quick video explaining the interaction we've been seeing lately between Trampletoe and Frost Wall. Its gained a lot of attention but doesn't seem like anybody explained what was going on correctly, so I just wanted to shed some light on it and why it's so broken. Wouldn't suggest building it as this is very likely to get nerfed due to how easy it is to set up, on top of how low investment the core of the build really is. Also totally stole the damage number image in the thumbnail from #1 Spreadsheet fairy Maygii~

00:00 - Example
00:21 - Explanation Start