A/P with Make Haste

My HA team build is pressed for skill slots and im wondering if this is a stupid idea.

Assassin/Paragon
Level: 20

Critical Strikes: 13 (12+1)
Dagger Mastery: 13 (11+2)
Deadly Arts: 5 (4+1)
Command: 5

Golden Fox Strike (Dagger Mastery)
If this attack hits, target foe takes +27 damage. If you are under the effects of an Enchantment, this attack cannot be blocked.
Energy:5 Cast:0 Recharge:4

Wild Strike (Dagger Mastery)
Must follow a lead attack. If it hits, this attack strikes for +32 damage and any Stance being used by target foe ends. This skill cannot be blocked.
Energy:5 Cast:0 Recharge:4

Shattering Assault [Elite] (Dagger Mastery)
Must follow an off-hand attack. If it hits, you deal 67 damage and target foe loses one Enchantment. This attack cannot be blocked.
Energy:10 Cast:0 Recharge:4

Impale (Deadly Arts)
Must follow a dual attack. Target foe is struck for 50 earth damage and suffers from a Deep Wound for 10 seconds.
Energy:5 Cast:0.25 Recharge:15

Siphon Speed (Deadly Arts)
For 10 seconds, target foe moves 33% slower and you move 33% faster. This Spell has half the normal range.
Energy:5 Cast:1 Recharge:5

"Make Haste!" (Command)
For 10 seconds, target other ally moves 33% faster. This Skill ends if that ally successfully hits with an attack.
Energy:5 Cast:0 Recharge:10

Song of Concentration (Command)
For 10 seconds, the next Skill used by each ally within earshot cannot be interrupted.
Adrenaline:8

Resurrection Signet ( )
Resurrect target party member. That party member is returned to life with 100% Health and 25% Energy. You may use this Signet only once per mission.
Energy:0 Cast:3 Recharge:0