StarCraft Tip: Anti-Zerg Tactics EMP Shockwave? What EMP Shockwave? The EMP Shockwave is useless against the Zerg, as is anything that requires targeting something mechanical. Topple the Spires Go after Spires. It's the thing that looks like a mushroom and lets the Zerg build air units. Unless your opponent is a believer in redundant buildings (most we know aren't, especially early on--the Zerg pride themselves on needing very few buildings), destroying a Spire will set him back some. This structure is also required for building Spore Colonies. Take out a Spire and you can seriously cripple the Zerg empire. - o -