So Swain and Brand are being nerfed because of Deathfire Touch
Swain's and Brand's kits are being nerfed (on PBE) due to being "overpowered" from forces outside of their kits (i.e. keystone DFT).
Fine. Now it's time to nerf
due to being overpowered because of
. The 300g increase is not sufficient--this is because this item provides 2 types of damage in addition to being the highest attack speed item in the game. It is STILL cheaper than most damage items, and it is harder to itemize against since it gives both AP and AD. So even with the price increase, opponents will still only be finishing 1 item by the time these abuse champions finish rage blade, and the defensive item is not nearly as efficient as rageblade since it can only protect against 1 type of damage.
Such an absurd power spike wouldn't be so bad if these champions actually required skill. But alas, all 3 of them are point and click. Xin is the worst offender followed closely by irelia in terms of skill ceiling (there is none). Jax at least ill say has "some" skill because he has to time his E and is more easily bursted when going in than either xin or irelia.
The price increase on rage blade is not enough. Either these specific champions' ratios need to be changed (since they are now all rushing this item), or some stat/combination of stats on rage blade need to be nerfed.