Mobility is a great asset for any champion in League of Legends. A highly movable champion will be able to assist accross lanes and return to the fray faster. Walking time is wasted time, so whatever diminishes it is worth considering.

Items that increase movement speed (MS) can be divided in two categories: boots and other items. Boots increase MS by a flat amount while other items increase it by a percentage. To see which items provide the highest increase to MS for the least gold we’ll check their cost effectiveness: cost divided by the boost provided. The cost effectiveness is the cost of each unit of the boost: one MS or 1% bonus MS.
Continue reading »

Carries’ most important stat is attack damage (AD). Attack speed (AS) is an important stat also, but usually is secondary to AD as it doesn’t improve skill damage and its effectiveness is based on AD itself. Critical strikes (CS) shares a lot in common with AS, as it can be considered a secondary stat for carries. Both AS and CS depend on AD but they can each double the damage output of a champion if properly built.

There are carries with a certain affinity to specific stats, for example Ashe with CS. In case of such a build it becomes useful to know which items give the most critical strike chance bonus per gold cost. The table below has all the items that boost CS with their gold cost and cost effectiveness. That is, how much each unit of the bonus costs in gold. Clicking on the last header we can order the table by cost effectiveness and make an analysis.
Continue reading »

Magic resistance (MR) is the third of the principal defensive stats in League of Legends. It only protects against magical damage, but taking into account the burst potential of mages and that most ultimates deal magic damage, it becomes a stat worth considering.

The table below contains the items that provide magic resistance and their gold cost per unit of magic resistance. Click on each header to sort by that criterium and check some numbers. From now we’ll concentrate on the final criterium: cost per magic resistance.
Continue reading »

We have already covered offensive items for carries and mages so this time we focus on defensive items. Items with a health bonus are not only useful for tanks, because they can also increase the survavibility of squishy carries and mages. Let’s take a look at the cost effectiveness of these items.

The first thing that comes to mind while inspecting the Cost/Health column is that health is cheap in comparison with attack damage (AD) and ability power (AP). With the exception of Trinity Force, all other items provide a unit of health for less than ten gold. However, considering that health is gained in hundreds even small variations in the cost of a hit point are important.
Continue reading »

Sometimes it’s useful to know the cost effectiveness of items. If you are building a carry concentrating on attack damage (AD) you would want to know what items are best suited at increasing that stat using the smallest gold investment possible.

The sortable table included organizes all items that increase AD and compares their cost effectiveness. The simple division of gold cost by AD bonus provides an exact measure of how much gold is spent per unit of AD. Each column can be sorted by pressing on its header but sorting by Cost/AD provides the most interesting results.
Continue reading »