10 Times Professor X Outsmarted Everyone
9. Overcoming Mr. Sinister's Mind - X-Men: Legacy #214
After failing to move his consciousness into the body of the Juggernaut, Mr. Sinister decided on an even more stupid plan, by attempting to instead take over the body and mind of Charles Xavier.
While this plan initially appears to have worked, it drastically underestimates the powers and perseverance of Professor X. When Sinister tries to weaken him by showing him some of the worst moments of the X-Men leader's life, he instead reminds him of exactly how much he's fought against in his life, giving the telepath all the motivation he needs to promptly regain control of his own body.
With Sinister having dedicated almost his entire life to try and take over Xavier in this one moment, it's undeniably impressive to see him fought off so well - and an example of Professor X's smarts having a physical impact, for once.