Things I've learned in the last 2 days of midlane/yolo queue: 1: Ryze and Casseopeia are back in tier 1 status amongst AP carries. Muramana and Seraph's Embrace put Ryze in a whole new level of pain, while Liandry's Torment is a huge boon for Cass. She only gets the full proc with Twin Fang, but it doesn't really matter; you're going to eat so much more damage with it now. 2: Armor shred champions got a boost across the board. Pantheon, Jarvan, Urgot, Wukong, all need to be re-evaluated due to the change in armor pen. In particular, Wukong and Jarvan got the biggest boosts. 3: Tanks have lost a lot of their former dominance. New items/pen rules makes it much much harder to simply sit in the middle of a fight; you need to bring good damage regardless of your role. I don't expect things such as tanky Rengar or unkillable Cho'Gath to be around much longer. 4: Barrier hasn't made a huge impact yet, and just might not. Overall, it's a great summoner, but it doesn't give you the reach of an Ignite or Exhaust and it can't save others like Heal can.