The Cohhilition

if anyone got the time please explain to me how it works exactly as i watched ziggdyD video on youtube and as a noob player of course i do not understand how the mechanics work specially with the support totem and detonation
thanks in advance

Just watched his video from the 4th. If he is doing the same thing, it looks like he is using mines linked with glacial cascade and self detonating to clear packs while using a totem with detonate mine for bosses. Mines are more interactive than totems, but also give you freedom to run while clearing packs and avoiding boss damage. The Tremor rod unique basically doubles the damage, which is sweet. Mines have some internal cooldowns, so there could be some learning curve vs. totems. Historically mine builds have been strong, but not quite strong enough to ever be nerfed.