The node states that “This buff stacks and lasts until the totem expires”. So I tried to test the limits with the new tidal elemental totem, and the node correctly applies the damage. It gets resetted if I resummon so I planned to use the teleport boots on leap slam. Anyway The issue is that while testing against the dummy, if I stop hitting the dummy the damage buff goes down, so the totem is losing the stacks.
I’m not sure how log it lasts, something around 25s-ish, but that’s very different from what the tooltip states.