Cold Mastery? Is cold mastery worth investing in? Currently have a lvl36 Blizz sorc. I have lvl10 warmth, lvl5 static, 13 in blizzard and 6 in glacial spike. I plan on maxing blizz,glacial,and iceblast first. then another 5-10 in static. and the rest in icebolts, or cold master if it's worth it, since 5% isnt much from synergies..lemme know.