Of PvP & Protect Spell

[Fainto]

Does this mean that "Blood for Blood" doesnt increase damage taken by 25% then also?

No, but it seems like you're missing the nuance in the wording here. Spells and abilities that say "damage taken" will still work the exact same way they do in PvE.

Some examples of spells that do work (Damage Taken):

• Blood for Blood
• Vengeance
• Rampart
• Sentinel

Some examples of spells that don't work (Physical or Magical Defense):

• Protect
• Foresight
• Fey Covenant

As for raising the magic defense of Dragoons, that is mostly a PvE change... The issue there is that DRG armour has much lower magic defense than everyone else on their gear and are therefore more likely to die to unavoidable aoe magic damage (such as the primal ultimates and megaflare in T9).