Quote Originally Posted by Rocco View Post
Pirate and the rest of the posters are just full of it. None of their claims are supported by proper and sufficient data (if any at all. I'm sure most is just hearsay). Resistance/Block does NOT reduce magic damage. Atks inflict a damage range, so you need gather enough damage numbers and find the average before you can make a comparison. Twenty samples should be enough. All other conditions must be identical.

Some people speculated that break helps Shayd's stun rates. Again, no numbers to back it up. There has been no evidence to date to suggest that block or break affects mages in any way whatsoever.
Testing this will take all of 5 minutes. Why not try it for yourself?

Go into arena, hit a friend a number of times with nothing but your main and a mage (for simplicity). Afterwards, do the same but ask your friend to remove their block rune. See the damage increase? Good, step one is finished.

Step two: do the EXACT same test, both parts, except have a break rune on your mage. The damage before and after the block rune will not have changed in this scenario, unlike the first.

NOTE: make sure your friend in not changing their formation, so that each time you cast the spell it is on the same hero so that numbers will not be botched due to magic resistance differences.