Seduce him, it’s the only option!

@Roy-of-Asturia  
Seduce him.  
Princess Twilight sparkle: “Soooo, is it true what they say about a guy with big hooves?”  
Lord Tirek: “What in Tartarus is that supposed to mean?! Your tiny pony body disgusts me!”
 
Mock his hairdo.  
Princess Twilight Sparkle: “By the way, does your hair naturally grow that way, or did you tell your barber to just screw you up?”  
Lord Tirek: (stomps on you)

Misc – I’ll give you my magic.  
Princess Twilight Sparkle: “Some of my magic isn’t even mine. You can have it.”  
Lord Tirek: “You chose wisely, for all shall return to nothing.”
 
Misc – You can’t be trusted.  
Princess Twilight Sparkle: “How can I assure of a mutually beneficial relationship with the likes of you?”  
Lord Tirek: “You can be my slave until your natural lifespan ends.”
 
Misc – My friends aren’t worth it.  
Princess Twilight Sparkle: “These Ponies mean nothing to me.”  
Lord Tirek: “So do I. So do I.”

I would love it if someone made dialouge for all the options

Use explosives skill to plant tactical charges!

Mock his hairdo.
 
Really, mock his whole look.