Activate—Spatial Slice [two-actions] Frequency once every 10 minutes; Effect You phase the quantum reaver through space- time, making a melee Strike against any creature within 30 feet as if you were adjacent to it. On a critical hit, the target is slowed 1 for 3 rounds.
Text says "as if you were adjacent to it." Do you get to pick the "adjacent" square the attack originates from? If so, you could gain a flanking bonus for the target to be off-guard if you have an ally that's threatening on the other side. Is that the intention?