Glyphs

Grimtooth

Why does a 40th lvl strong glyph of flame do only 1403 damage, and an 5th lvl inferior glyph of flame does 1948 damage? All other glyphs are the same, the higher the level the lower the bonus.

Carraig

I can only think of the battle levelling: all mobs in the game have the same level (CP160), regardless your level. The lower your level is, the more your stats are boosted to be able to cope with these mobs.

Nestor

This is the scaling effect in play. An L5 does not have the inherent power of an L40, so the gear, and glyphs make up for it. Which is why you will find as you swap out gear while leveling, your over power and stats stay about the same.

But, if you think you can just use L6 gear on your character to L50, it won't work as the scaling algorithm takes that into account and you get less boost on gear your over leveled for. Its about 10 levels before you really start to notice it.