Firstly, I'm not entirely sure I spelled Illusioner right, forgive me.
Step 1. Load Minecraft.
Step 2. Enter Creative Mode.
Step 3. Observe Misc item tray.
Step 4. Find Spawn Eggs in Misc item tray.
Step 5. Observe the lack of a Illusioner Spawn Egg.
Step 6. Create bug report just in case that's a bug.
Step 7. If not a bug, please take as friendly reminder.
Step 8. Q is an angry letter.
Step 9. Remove Herobrine.
Step 10. Determine logical reasoning for the strange things occurring at my base.
Step 11. Play more School of Dragoons.
Step 12. Blame Firefox for resolving to discontinue support of Unity Web Player.
Step 13. Finish Bug Report.
Step 14. Rockatoa, Brickticks out!