Necro: What is combo breaker and where does it work and how?

[Razlath]

Here you go.

Can someone tell me what exact difference between normal and hard?

Sirrian had a post on the 1.0.7 Patch Preview 2 blog post: In version 1.0.5 and earlier, all gem drops were totally random… the AI and the human both had an equal chance of lucky drops – cases where gems drop in to set up or activate good skull matches or 4-of-a-kind matches. Unfortunately, a lot of players felt that the AI was cheating (for the record it definitely wasn’t). It’s an unfortunate way that our brains are wired so that negative events are remembered more clearly than positive one…