I'm trying out the Tyrannical Primal Diamond: +665 PVP Power & +775 Resilience, but after playing some with it, I'm not convinced it's the best choice.
My other choices are:
■ Sinister Primal Diamond: +324 Crit & Chance on dealing spell damage to gain 30% spell haste for 10 sec;
■ Courageous Primal Diamond: +324 Int & Chance on casting a helpful spell to make your next spell cost no mana.
or the non-legendary, Burning Primal Diamond, +216 Intellect and 3% Increased Critical Effect
Any suggestions or thoughts? I did do research, but still am not convinced. I need help.