Riot, could you take a look at the build paths of Rabadons and Void Staff?

Especially Deathcap is really disgusting to build. When you buy Rabadons as a Mage, you will have Boots, Dorans, a mana item, and, most of the time, a second AP item like Ludens or especially Zhonyas, which leaves 2 slots open for (best case) a Needlessly Large Rod and a Blasting Wand. Then you still have to stock up an incredible 1700 gold in order to finish it. Also, you are clogged so hard you don't have any space for pots or pink wards. Same goes for Void Staff. Usually you only have 1 or 2 slots open, which makes the finishing cost either 1800 or 1365 respectively. It would be really nice to have the build path getting smoothed out a bit.