plans for next alt

Multifaceted frameworks that combine the best of a few powersets that work together are the best, but in a concept build that can't always work, my next alt i want too make a tank please take a look at this build an tell me what i need to do.
i went with shadow bolt for fear an that added dmg mitigation, also with shadow shroud.
Defiance im not so sure about the dmg resist.
Build by championBuilder 0.4.1

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: Level 40 Champion

Superstats:
Level 5: Super Constitution
Level 13: Super Presence

Powers:
Level 1: Shadow Bolt -- Despondency
Level 1: Shadow Embrace -- Challenging Strikes, Rank 2, Fatal Allure
Level 5: Shadow Shroud -- Terrifying Visage
Level 5: Teleport
Level 8: Defiance -- Rank 3, Rank 2
Level 11: Spirit Reverberation
Level 14: Energy Shield -- Laser Knight, Rank 2
Level 17: Enrage -- Giant Growth, Adrenaline Junkie, Rank 2
Level 20: Defensive Combo -- Surge Of Strength
Level 23: Resurgence -- Evanescent Emergence
Level 26: Masterful Dodge
Level 29: Ego Storm -- Malevolent Manifestation, Rank 2
Level 32: Mindful Reinforcement -- Rank 3, Rank 2
Level 35: Circle Of Primal Dominion
Level 35: Acrobatics
Level 38: Telekinetic Eruption -- Enhanced Form

Talents:
Level 1: Abyssal
Level 6: Enduring
Level 9: Energetic
Level 12: Boundless Reserves
Level 15: Shrug It Off
Level 18: Quick Recovery
Level 21: Paramilitary Training