Any advice from the pros? Draketooth Rifle, Valdaci Shieldwarden (w/ Weaken Spells), Akakios, Enslave and Mine Field are experimental. Other runes I'm considering: Draksar Morph w/ Metamorphosis (super champ counter), Locust (summons counter), Skeezick Trigger (relic counter), Draksar Shifter and Sandstalker Lord (alternatives to Akakios/Shieldwarden), Kanen Crone (long range, late game), and Skywing Sonicbolt (Swap).
Valdaci guardian is a pretty S-tier tank, draketooth rifle isnt worth running as a standalone rune when you could just run the draksar that gives it free while also giving you a block of meat you can contest fonts with and do other support rune things. you dont have enough ranged champions in general. Youre probably better off hopping on the discord and asking there. People are a lot more active there