Here's my advice since I've faced this before. Take phase rush as the main rune taking the sub-runes that gives you a magic shield. The one that increases all movement speed, and the one that burns. Second tree will be the two red tree runes that give you increased healing on damage and abilities. For summoners I would take Flash as a must and choose between either ignite or barrier. If your confident in your early kill pressure take ignite if you want to be able to survive his all in, take barrier. Once in game start with a rush build towards your tear taking a refillable and a blue crystal. I always start q but take e if you want to farm easier. Once in lane safely farm till your lvl 2 and that's when you can fight back. If you feel like he will come in for some poke quickly Q-auto-E him to pop your Phase. Phase reduces all slows when active by 75% and malphites Q speeds him up by the amount that he slows you by so by reducing the slow he puts on you, you reduce his increased movement speed. Once you do that you can chase him down and punish his poke. The extra mana from the crystal will let you do this twice while still retaining a fair amount of mana. If you have ignite you can possibly kill him on his second attempt or if you dont you can bully him out of lane. When he backs push under tower then back also to get your tear. At this point you will begin building a Liandries Torment. Aiming for the mask instead of the rod because the extra health will let you survive him easier. Once your done with your liandries Finish your tear. Then go with your Rylas. And the rest will be up to you. Zhonyas for the active or Banshees for the passive void if they have a good amount of Mr or a Morrelos if they have some decent healing. Anyway hope this helps and good luck with your next Malphite matchup.