Sunny had dropped the throwing dagger near the monster's body in advance and then took all those steps back to make this exact situation possible. As soon as the Parrot Rock spoke, he pulled on the invisible string, sending the kunai flying back in his direction. The tall bastard didn't just happen to be in its path, either.
[You have slain…]
The leader of the hunting party really should have listened to that rock.
[... shadow grows stronger.]
Before the Sleepers even had time to react, Sunny was already moving. The shadow had been wrapped around his body a long time ago, making him that much faster. Summoning the Midnight Shard, he fluidly slashed at the nearest enemy, severing the man's arm at the elbow.
The blade struck right between the vambrace and the couter of his enchanted plate armor.