I think you should take out mind control and gather specimens. Instead, add 4 other cancel-like cards and put in 4 Ruin Ghosts. They go hand-in-hand with Roil Elemental.
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Great deck! I see two problems though. You don't have any Islands yet you have 4 Wall of Denials. I love these walls and it makes sense to have them in these deck, but yeah... Although it'll take awhile to get what you what on the battlefield before the opponent takes control, but I would use this.
Everlasting Torment! If this isn't type 2, then why not?