Tirek and Discord Betrayal

Tirek starts with a "T"

Oh my! The irony

Because he's honestly

The most evil monster

That I have ever seen

What thing could I prefer

Less than that evil fiend?

Scorpan his enemy

Former friend and sibling

Betrayed his kin, the fiend

To save his friend pony

Sadly, barely mentioned

Only seen in cutscenes

He is not important

Reduced to backstory

Skip past millennium

Guard dog left to have fun

Escape while hound is gone

Convict is on the run

Caution not required

To hide from the princess

Though now, he is tired

Royals never noticed

Princess has a vision

Twilight, called to listen

Input from some is given

Now who's on a mission?

Who's that? Marry Poppins?

Or that Draconequus?

Chaos god of nonsense

Bragging, he can't resist

Comes down with a journal

To stop some infernal

Centaur, who's immortal,

Trap him far down below

Book is compilation

With some bookmarks in it

Simple lock solution

Missing key of friendship

Twily, about to burst

She feels even worse

And if ponies could curse

Someone's feelings she'd hurt

Discord charged with stopping

Evil red entity

Pause to brag while talking

Regains his enmity

Ally becomes traitor

Hope now gone to vapor

Shy's friend turned against her

So much for a helper

He's manipulated

Poor thing, he's been fooled

Soon he'll be outdated

Useless, a broken tool

Even he couldn't see

Past lies of enemy

That's fine because the tree

Has box of harmony

Too bad Twily lacks key

All four princesses hide

Boost her magically

Still lacks all her pride

So now, Discord's betrayed

By his "friend" for his aid

Despite all the he gave

Ever he'll stay a slave

Time, it is all about

Worry over nothing

When time is running out

Forget to check on fiend

Traitor betrayed at end

Occurs near instantly

After he betrays his friend

Must be betraying spree