How strong is Ryze's magic?
I saw Ryze's cinematic yesterday and decided to read a bit of explanations on the new map. It says he is hiding world runes "deep beneath the ancient petricite groves". Petricite is, according to the same map, a magic-nullifying substance. Galio is made from it (or it's part of him, not sure now) and even in his story it's said that
Exhausted from days without rest, the refugees hid among the shadows of an ancient, petrified forest. The sorcerers that pursued them suddenly found their magic to be ineffective in the strange woods.
Yet somehow Ryze is able to teleport himself right in the middle of petricite forest, how? He is also carrying a world rune, source of Runeterra's magic, in the middle of Demacia, shouldn't it awake Galio even when he is miles away?