The former Finnish international striker replaced Pablo Counago at half time in Saturday's Coca-Cola Championship clash that Town won 3-2 and changed the game for the home side by scoring two goals to change the game.
Now with Shefki likely to start tonight in place of Spainiard Counago, Magilton wants to see more of the form from the striker that secured the blues three points on Saturday.
"Whatever Shefki did to fire himself up for that second-half on Saturday, I want to see more of it!" he told Town's Official Club Website.
"The big man was sensational. Aggressive, quick, never gave the ball away, scored two fantastic goals. He was outstanding and won the game for us.
"I have never seen him so wound up when he came on and hopefully he will draw so much confidence from that performance that he will go on and be the player everyone wants him to be. It's up to him now to show he can turn in performances like that regularly."
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