Tyrant Swain (675 RP)
Justicar Aatrox (487 RP)
Apocalyptic Brand (375 RP)
Warrior Princess Sivir (260 RP)
In case you missed it, Riot recently announced changes to discounts and sales - this includes adding a fourth champion and skin to the weekly sales!
The January sales have also been announced! Check out this link get a sneak peek of what's coming up in January.