[Standard] Abzan Blue - sugestins why/why not

I've been playing this deck http://www.mtggoldfish.com/deck/344961#online for a while practicing for a big tournament i have this weekend. At this moment i have >60% overall winning rate against a mix of decks.

I have my sideboard like this: 2x Mastery the unseen 3x Surge of righteoness 2x Self-inflicted Wound 2x Transgress the mind 1x Tasigur 1x Languish 1x Planar outburst 1x Stuborn denial 1x Exert influence 1x Den Protector.

I believe Abzan X (aggro), Esper X (tokens/control/dragons) and in a fewer number Rally/jeskai Black/atarka red. So i'm trying to tune the deck for abzan and esper mostly.

At this moment i'm sideboarding in these lines, would like if someone point me if i'm doing wrong.

vs Abzan -2x dromokas -3x stubborn denial +2 self-inflicted wound +1 den protector +1 planar outburst +1 exert influence

vs Esper Control/dragons -2x dromoka's -1x Exert influence -2x Murderous cut +2 transgress the mind +1 den protector +1 stubborn denial +1 tasigur

vs Atarka Red -1x Dragonlord silumgar -1x Stubborn denial -1x woodland wanderer -1 exert influence -3x abzan charm +3 surge of rightneouss +1 languish +1planar outburst +1den protector +1 tasigur

vs 4c Rally -2x dromoka's command -dragonlord silumgar +1stubborn denial +1 den protector +1 languish

Usually is something in those lines.

Any sugestions on card that make the difference on the "mirror" and against esper/jeskai would be appreciated. Silumgar command would be good? Wingmate roc? Tragic Arrogance instead of Planar? Duress/despise in the sideboard?