I am running a Shadowrun game. its mostly a mirror shades game and one player has min maxed his mage to completely shit on anything i can throw at him. whats more he plays his character like a marry sue. the problem is he has a magic rating of 8 with 2 initiation grades. he has the quicken spell and channeling metamagics. this allows him to have a force 8 bound spirit in him raising his physical stats as high as possible and he has an increase attribute willpower spell and an increased reflexes spell quickened. what can i do to put this character into a challenege with it being fair and not killing the rest of the party?
First, make sure you're having him roll all those drain rolls, instead of handwaving. Second, I agree that the build seems... suspicious at best. Have a long conversation with the player about why he shouldn't try and break the game and ruin things for everyone else.
As for challenges:
Mana ebbs/voids, or high background count areas - A group of gangers isn't going to be much threat to the rest of the party, even in a F6-7 background count.
Wards - Either you set off the ward, and call down all hell on the group, you lose your spells/spirit, or you can't get through.
Harrassment - Every corpsec or Knight with the sight (or a glowand) is going to see the mage light up like a Christmas tree on the astral. Most 'decent' places, mages have to be licensed. And some places just plain won't allow them in. "Papers, now!" gets old after a while.
Targeted - If he's starting to make a name for himself, especially as a mary sue type, then someone somewhere is looking to take him down a peg, either to claim the top spot, or to humble him. (Or maybe they have friends he hurt on a run.)
GEEK THE MAGE FIRST! - Sniper in a nest overlooking a public area for a classic double-cross by Mr. J. And he's kindly given the sniper profiles of the team, so the sniper starts with the mage. This is a really great one to do if they've hurt Aztechnology in the recent past.
FAB IIIb - Otherwise known as 'that drek that eats magic'.
Renfield - Have someone spike the mage's drink with this, get them addicted, and then have a vamp string them along.
Hacker - You know the urban legend of the hacker that gets pissed at someone, and then goes about doing everything they can to make their life hell? It isn't a legend. Until the hacker is found or placated, the mage is going to find himself on terror watch lists, he'll be involved with child pornography rings, every murder is going to have him as a 'person of interest', and you wouldn't believe all the spam calls he's getting, at all time of day and night, in all languages. Oh, and he catches every red light, his train is always late, the food is always burnt or undercooked, the fridge got bricked, the power bill somehow shot up to 10,000 nuyen a month, and...