Guild Wars 2

When I select Dark Armour from the Death Magic trait tree along with Deadly Strength from the same tree, the effects from Deadly Strength don’t trigger when I channel. I’m looking in my equipment stats and nothing changes when I channel. The Dark Armour increases my toughness by 400 when using grasping claws but 10% of that (40 power) should have been added to power.

Am I missing something or is this a bug? It seems like a bug to me.

Well two possible things you might be missing.
1) Hero panels is bad at updating some stats. For example the food that gives you extra MF if you have a boon. The panel won’t show any change to MF when you gain/lose boons. Can’t really test MF but this one you can test although it is a bit more work without steady weapons.
2) I don’t remember ever seeing any sort of answers from a dev regarding how stat conversion (from traits, runes, consumables, etc.) are supposed to interact with each other. It might just be the case that they all work with the base/static value from gear and the fixed amount for putting points into a trait line.