general support Io
This is how to play support as Io. This build is applicable whether you are dual or tri-laning.
Please note the following regarding the item build: Disassemble the Ring of Basilius and use both components in making the Tranquil Boots and Soul Ring. Any situational items needed should be bought before the Heart of Tarrasque. Buy Urn of Shadows before Mekansm, should you be in the situation to build one.
Please note the following regarding the skill build: You may skill 1 into Overcharge early to make sharing your regen easier; do this is if you predict that your Soul Ring may be delayed.