[Gameplay][Tooltip] Kalista's Rend Tooltip is wrong.

In 5.13 Kalista's Rend tooltip received a change with the removal of the specified damage per-rank for each spear stack beyond the first [ 10 / 14 / 19 / 25 / 32 (+ 20 / 22.5 / 25 / 27.5 / 30% AD) ] in favor of stating "Each extra spear increases Rend's damage by 50%".

This is simply not the case. Additional Rend stacks presently do not deal the stated 50% of the initial Rend damage, dealing only 40% at rank 1, scaling up to slightly above 50% at max rank. There was no change to Rend's damage calculation in patch 5.13, but the tooltip now misleads the player to believe the ability deals more damage at early ranks than it does.

Can we get some clarity on the ability from Riot? The tooltip is completely wrong.