Aerin Spirit or Sacred Targe Spirit? I am building a hammerdin atm. He uses aerin spirit with 45 base res. The armor is 1350 def AP engima. My question is, is it worth getting St spirit instead? I know st is better but it only increases def by ~120, which is 1/10 of the def from enigma. After holy shield, both shields should reach 75% (chance to block). The cost for st is much higher. Is there such a performance difference to justify the upgrade? Does st have faster block? I play PvM and hammerdin is mostly used for rush.