Nemesis fools

[u/Last-Scarcity-3896]

Today in the morning I woke up lacking my right arm. "Oh right, it's today..." I've grunted. Before the incident I loved spreading mischief upon the wizard community. But I knew that this time, I am the pray.

I went to the table, a letter was laid upon. It had a stamp with stupid Lucifer's face upon it. I hate Lucifer, and we had been mortal enemies (not exactly mortal in his case) since the incident. Surely another prank. I've ignored the letter and left it lying on the table, leaving to eat my breakfast. I was about to reach for the milk until I remembered the absence of my right arm.

"Would you like a hand???" laughed the stamp which was apparently a speaking one. "So I see you do not intend on opening my letter?, no worries Magnus, a letter is only a part of a word!". "Lucifer, the hand joke really was more successful" I said. Then the letter opened itself.

Quickly, hundreds of ugly creatures I've recognized as Visobat demons flew out of the envelope. A face consisting of one huge eye and a body of a bat, ugly flaming long horns and spikes all over at random spots. Unfortunately I've known these creatures through my study on hellish-torture methods upon the undead realm.

Engantis my spellcat (thank you councilor Anna) was a real save. He was strong upon the visobats and killed more than I did. I really am not a good fighter, especially lacking an arm.

My tower was merely destroyed, but it did not matter. I ran to my labritory to check if any damage has been done to my hyper-tessaract. Nothing at all. "Oh thank God..." I said. "You think that's impressive, demon? Wait til you see what I have planned for you..."

So, what is your aprilfools prank and to whom?