When you see the Autofill Triangle, keep a support rune page ready!

Additionally: You can generally use runes from another role type on a support class, within reason. Your mage page will typically work on most poke and heal/shield supports. A tank page will work on a tank support.

Shit I don't even have support runes and I still support from time to time. What kind of excuse is "i don't have the runes"

Don't need a support rune page when you can just cry about autofill on boards after losing your game.

For the most part I feel like 'support' runes are going to legitimately be the same as an ap mage runes or a tanks runes. If your only pages are ADC runes and AD assassin runes, then you probably shouldn't be playing ranked.

It's basically only masteries that have any noteworthy differences compared to carry roles, and those can be changed at champ select.

I'm fine with taking support from people. I love being called a Raid Boss on my Leona and know how to make plays and help the team, even when my ADC is being a crayon eater.