This is what I use for leveling up a wizard from 2-28 some of this is difficult to get or maybe even impossible, some is easy to farm use it how you like, i know lots of people that have issues coming up with gearsets that work well and this works very well for me. i find that i am able to hit the required spell DC's in reaper mode and keep my defenses to an acceptable level as well with this gear.

level 2
Helm: hat of the night hag
Neck:necklace of contemplation
Trinket:runic trinket
Cloak:
Belt:
Ringswap: Featherfalling ring
gloves:Tattered Gloves
boots:
Ringstatic:
bracers:
Armor: Robe of duality
Goggles: CC crafted goggles, colorless slot with masters gift, persuasion, true seeing
Weapon: cc crafted stick of fire spell power and negative spell crit
offhand: Nicked orb
Quiver: quiver of alacrity

level 3
Cloak: phiarlan mirror cloak

level 4
belt: Indomitable Wrappings
ring: Ring of the Buccaneer

level 5:
Trinket: Vibrant Purple Ioun Stone
boots: boots of corrosion
gloves: Charged Gauntlets
Cloak: Envenomed Cloak
Bracers: Scorched Bracers
Helm: Helm of Frost
Mainhand: flaming forum post
offhand: necrotic forum post

level 8:
Neck: chains with heroic sorcery set con quality con
Ringstatic: five rings with sorcery set int, quality int
Bracers: Shackles with sorcery set cha quality cha
Ringswap: Spinneret with sorcery set
Cloak: slave masters cloak with sorcery set
belt: Indomitable Wrappings (8)

level 9:
boots: Kundarak Delving Boots

level 10:
Helm: Hat of the night hag
Neck: Reflective bloodstone
Cloak: phaseclaok
Belt: Silverthread belt
gloves: blurfingered gloves
boots: flightfoot greaves
Ringstatic: Ring of nightfall
Bracers: Braceres of the fallen hero
Armor: barovian nobles regalia
goggles: Summoners spectacles
Mainhand:Macabre Sceptre
Offhand: Barovian Sceptre

level 11
Bracers: Heroic greensteel with smoke and HP with displacement clicky
goggles: heroic greensteel with spell points and cha skills with haste clicky

level 13
Helm: Pansophic Circlet

level 15
Neck: CC crafted with constitution +8 and insightful constitution +3 and false life +29
Cloak: Black Velvet Capelet
Gloves: CC crafted with insightful nullification +47 negative healing amplification +30 and nullification +94
Ringswap: Shattered Onyx with insightful int +3
Bracers: Aetherband
Armor: Orders Garb
Goggles: Dusk Lenses

level 17
helm: Darkstorm helm with reaper bonus
Sunken Slippers with qality int +1 (this is bullcrap btw at level 17+ quality stat should be +2)

level 23
Helm: CC crafted Helm with Spellsight +18, insightful spellsight +9 wizardry +220
Neck: CC crafted Constitution +11, Insightful Constitution +5, Sheltering +27
Trinket: CC crafted Spell penetration +5, Spell Focus Mastery +4, Efficient Enlarge
Cloak: CC crafted Int +11 insightful int +5 dodge +11%
Gloves: CC crafted with insightful nullification +61 negative healing amplification +43 and nullification +122
Weapon: Flaming forum post level 20 with sentient
offhand: Necro Focus +5, Insightful Necro Focus +3 parrying +5

level 26:

Helm: Sightless
Belt: Belt of braided beards
Offhand swap in legendary greensteel dust, ash, ooze, freezing ice, affirmation as needed

level 28
legendary spinneret
I dint fit an epic slave lords set for use for just one level. But if you need a bump here, put one on.

level 29
helm: LGS helm with 3x bonus to fire spell crit damage with immortal heart (swap the helm off to a legendary arcsteel brim for the extra magical sheltering after using ~1000 spell points)
neck: The Zarash'ak Ward
trinket: Slavers crafted with wizardy 371, quality wisdom +4, spellsight +22, resistance +14
cloak:legendary gossamer weave
belt: legendary silverthread belt
ringswap: legendary shattered onyx with +10 insightful int crafted
gloves: legendary skin tight gloves
boots: LGS boots with 3x bonus to negative spell crit
ringstatic: legendary celestial sapphire ring with +21 con crafted
bracers: legendary necromancers bracers
armor: the legendary blackmail (you can put the robe armor from this set to eek a bit more dps at the loss of some prr/mrr)
goggles: legendary collective sight with +21 wisdom and +10 insightful con crafted
weapon: nightmothers scepter
offhand: legendary concentrated chaos orb with +5 quality int crafted