To kill Razorgore, Shawn would have to enter Blackwing Lair, face a large number of Dragonmen and Dragon Beasts, and possibly provoke the Blackrock Orcs and Ogre tribes.
A frontal assault would require all of Stormwind City's troops.
A surprise attack would require at least the strength of a Grand Professionist.
Shawn had neither, so he had to find help.
Shawn had been thinking about this all along.
The quiet atmosphere by the sea helped him think, which was why he had come to the shore.
A little cold wind would clear his head.
While he was lost in thought, Chromie suddenly appeared.
She walked over to Shawn, signaled to Olivia not to disturb him, and stood there, watching him quietly.
She was thinking too.
The Time-Lord Nozdormu had sent her to observe Shawn and determine which side he belonged to: whether he was a guardian of Azeroth or its destroyer, and whether he was helping the Old Gods.
Over the past few days, Chromie had noticed that Shawn had been working to fight evil. Though he was not particularly proactive or wholehearted about it, whenever he encountered something he could handle, he would do his part.
Unless Shawn was exceptionally good at hiding his intentions, what she had seen was enough to establish that he was at least not a destroyer of Azeroth.
For the past few days, she had been considering whether she should take Shawn to the Caverns of Time to meet the Time-Lord.
The Time-Lord possessed boundless wisdom. Many things she could not see through, he could understand at a glance.
She had hesitated until today.
Since Shawn had offered to help the Alliance prove its strength, should she give things a push behind the scenes, letting Shawn skip that step and go straight to the