RP

Riot Points (formerly known as combat points earlier in the European server) are one of the two in-game currencies. They can be purchased with real money and are used to purchase in-game things to add convenience, extra customization options, or diversity to the experience. Examples of things that can be purchased with Riot Points are champions, alternate champion skins, or boosts, which are modifiers that increase the rate at which you gain Influence Points or Summoner Experience Points. Apart from purchasing champions and extra rune pages, which are both also purchasable with Influence Points, Riot Points cannot be used to directly affect gameplay.

Purchasing Riot Points
There are multiple methods to choose from when buying Riot Points and in varying amounts.

10 dollar and 25 dollar cards give 1380RP and 3500RP respectively, and are available at places like Best Buy, Gamestop, 7/11 and EB Games.

You can also buy them online using your credit/debit card info or via PayPal.

Receiving Riot Points
Any summoner will receive 400 RP upon reaching level 3.

On occasion, such as the server issues during Season One rotation week 40, summoners that played that month were compensated with 350 RP.

In December 2011, Riot awarded 450 RP to summoners above level 6, who had never been banned in the prior two months.

Value
The following table represents the value of common Riot Point prices when purchasing the respective smallest possible packages via PayPal or similar. Although many people claim that Legendary Skins cost $20, this table shows that their actual cost is $14, not considering any bonus points gained by purchasing larger bundles of Riot Points.

Some online payment methods will grant you more points for your money than others. Purchasing points with a mobile phone for example, yields less net income of points, as opposed to using PayPal for the transaction.

Champions' Prices
Buying all the champions if they are on sale will cost 43,262 Riot Points, a little less than $300 USD.