With the addition of the latest hero to League of Legends there's the inclusion of one of the more complex heroes that RIOT has developed.

A ranged carry, a jungler, a melee initiator... Jayce can be played in all of these roles and his mix of abilities should make him a player likely to be seen in competition soon.

The description on the RIOT homepage reads:

Jayce takes decision-making to the extreme, as he’ll choose between fighting as a melee or ranged champion, picking up a different set of abilities in each form. Jayce can wade into the heat of battle with the Mercury Hammer, or pick off targets from afar with the Mercury Cannon. Jayce not only plays differently throughout the game but can build for an entirely different experience in each individual match. If you’re interested in a jungler, fighter, ranged carry, or even a mix of all three, take a look at the Jayce Champion Spotlight!

That's a good idea. Here it is:

Patch Notes:

League of Legends v1.0.0.142

Ahri Fixed: Essence Theft will no longer occasionally allow Ahri to spell vamp off more than one spell Fixed: Spirit Rush's damage now matches the tooltip

Akali Crescent Slash Energy cost reduced to 60/55/50/45/40 from 60 at all ranks Now activates Mark of the Assassin's secondary damage

Alistar Trample Damage reduced to 7-24 from 10-27 Triumphant Roar Mana cost increased at earlier ranked to 40/50/60/70/80 from 28/41/54/67/80

Anivia Fixed: Assists are now properly granted when successfully reverting Anivia to her Rebirth egg form

Ashe Fixed: Hawkshot now displays the correct buff icon

Caitlyn Cast time of 90 Caliber Net has been reduced Ace in the Hole Range increased to 2000/2500/3000 from 1900/2050/2200 Channel time reduced to 1 second from 1.25 seconds

Darius Fixed: Noxian Guillotine's cooldown no longer refreshes upon killing Champion clones (e.g. Shaco's Hallucinate)

Dr. Mundo Fixed: Burning Agony can now be turned off at low amounts of health Fixed: Masochism no longer stops Dr. Mundo from using additional attack animations

Fiora Blade Waltz Cooldown reduced to 130/120/110 from 150/130/110

Gragas Base Health increased to 523 from 493 Armor per level increased to 3.6 from 2.7 Body Slam Charge speed increased to 1050 at all ranks from 650/750/850/950/1050 Mana cost reduced to 50 at all ranks from 50/55/60/65/70

Janna Zephyr Passive Movement Speed reduced at earlier ranks to 4/7/10/13/16% from 8/10/12/14/16% Slow duration reduced to 3 seconds from 4 seconds Monsoon Cooldown increased at earlier ranks to 150/135/120 seconds from 120 seconds at all ranks

Karthus Requiem Cooldown increased to 200/180/160 seconds from 180/150/120 seconds

Kennen Attack Range reduced to 550 from 575 Attack animations are now more responsive

Kog'Maw Living Artillery Additional cost stack maximum increased to 10 from 5 (max Mana cost increased to 400 from 200)

LeBlanc Sigil of Silence missile speed increased to 2000 from 1400 Distortion Cooldown reduced to 18/16/14/12/10 seconds from 20/18/16/14/12 Casting Mimic: Distortion no longer disables LeBlanc's ability to return to Distortion's origin point and vice versa

Lux Base Mana Regen per 5 seconds increased to 6.6 from 5.6 Light Binding Mana cost reduced to 50/60/70/80/90 from 60/75/90/105/120 Finales Funkeln Mana cost reduced to 100 at all ranks from 100/150/200 Cast range now displays on the mini-map

Miss Fortune Double Up Range increased to better match her attack range Make It Rain Slow increased to 20/28/36/44/52% from 20/25/30/35/40% Mana cost reduced to 80 at all ranks from 80/85/90/95/100

Morgana Fixed: Tormented Soil continues dealing damage if Morgana dies

Nautilus Dredge Line Damage reduced at earlier ranks to 60/105/150/195/240 from 80/120/160/200/240 Cooldown increased at earlier ranks to 18/16/14/12/10 seconds from 14/13/12/11/10 seconds Depth Charge Primary target damage reduced at earlier ranks to 200/325/450 from 250/350/450 Cooldown increased at earlier ranks to 140/110/80 seconds from 120/100/80 seconds

Nunu Visionary Attacks required to activate reduced to 5 from 7 Consume Damage increased to 500/600/700/800/900 from 400/525/650/775/900 Damage dealt to Dragon and Baron increased to 100% from 50% Cooldown reduced to 16/14/12/10/8 seconds from 18/16/14/12/10 seconds Absolute Zero Minimum damage if interrupted increased to 12.5% from 0% Maximum damage if interrupted increased to 87% from 70%

Orianna Global spell cooldown reduced to 0.15 seconds from 0.5 Clockwork Windup Base damage adjusted to 10-50 from 5-30 Damage amplification per stack increased to 20% from 15% Maximum stacks reduced to 2 from 3 Ability Power ratio reduced to 0.15 from 0.2 Command: Attack Missile speed reduced to 1200 from 1275 Cooldown reduced at later ranks to 6/5.25/4.5/3.75/3 seconds from 6/5.5/5/4.5/4 seconds Damage reduced to 60/90/120/150/180 from 60/100/140/180/220 Ability Power ratio reduced to 0.4 from 0.6 The Ball now responds faster to Dissonance and Shockwave commands Command: Dissonance Ability Power increased to 0.7 from 0.5 Command: Protect Cast range increased by 100 Ball leash range is increased by 100 when attached to an allied Champion The Ball will now respond faster to Dissonance and Shockwave commands Command: Shockwave Cast time increased to 0.5 seconds from 0.4 Fixed: Shockwave no longer stuns units for longer than the duration of the movement If the Ball forcibly leashes back to Orianna, Command: Shockwave will go on a brief cooldown if it is ready

Rammus Powerball Mana cost reduced to 70/80/90/100/110 from 80/90/100/110/120 Reduced the spell casting and movement delay after collision Defensive Ball Curl mana cost reduced to 40 from 50

Sejuani Fixed: Sejuani's run animation now changes according to her movement speed

Shen Stand United Cooldown increased to 200/180/160 seconds from 180/150/120 seconds

Singed Singed now has new spell effects for all skins, with the exception of Riot Squad Singed which retains its unique Poison Trail spell effect

Sona Hymn of Valor Mana cost reduced at earlier ranks to 45/50/55/60/65 from 65 at all ranks
Champion prioritization range slightly increased to better match her attack range

Soraka Astral Blessing Armor buff duration reduced to 3 seconds from 5 seconds Wish
Cooldown increased to 160/145/130 seconds from 120/110/100

Veigar Fixed: Veigar no longer gains Baleful Strike's Champion kill bonus when killing Champion clones (e.g. Shaco's Hallucinate)

Xerath Locus of Power Magic Penetration bonus increased to 16/22/28/34/40% from 10/15/20/25/30%
Mage Chains Missile speed increased to 2100 from 1700 Ability Power ratio increased to 0.8 from 0.7

Ziggs Bouncing Bomb Mana cost reduced to 50/60/70/80/90 from 60/70/80/90/100

Zilean Fixed: Chrono Shift now grant assists even if the target does not revive

Items
Hovering over items with auras or actives now shows their effect radius

Athene's Unholy Grail

Ability Power increased to 90 from 80
Magic Resist increased to 40 from 36
Ionic Spark

Combine gold cost reduced to 575 from 775 (total gold cost reduced to 2100 from 2300)
Chain lightning damage increased to 125 from 110
Quicksilver Sash

Combine gold cost increased to 900 from 700
Magic Resist reduced to 48 from 56

Pickaxe, Cloth Armor, Dagger, and Null Magic Mantle now properly display missing item build paths

Summoner Spells
Ignite No longer useable on minions (still useable on jungle monsters)

Co-op vs. AI Bots are now more likely to use abilities while retreating
Bots now properly retreat in their base to the summoning platform instead of getting stuck between the nexus turrets
Fixed: Bots no longer forget they are being chased
Fixed: Malzahar Bot no longer occasionally cancels Nether Grasp
Re-enabled Alistar Bot

General
Custom game bots now adjust to players' initial laning decisions before the first minion wave spawns
Dragon and Baron kills will now have a chat message and kill callout if your team gets the kill or sees them die
Spectators will now hear callouts indicating which team kills Dragon and Baron
Updated tool tips for Caitlyn, Graves, Janna, Kog'maw, Soraka, and Vayne
Champion-only targeting and pet control keys are now bindable The Proving Grounds
Removed Nexus Turret health regeneration
Death timer scaling adjusted to an additional second every 60 seconds after 24 minute from an additional second every 90 seconds after 24 minutes
Fixed: The Improved Recall mastery no longer causes the recall sound to keep playing even after the player cancels the spell
Fixed: Recall particles no longer appear on Champions as they come out of Fog-of-War
Fixed a bug with Ezreal’s Mystic Shot range at different levels. Dominion Nexus Crystal now displays over the shrine in Dominion Fixed a bug where Twisted Fate’s Jack of Hearts name did not display properly during loading.
Fixed a typo in the Air Client for Gangplank’s Raise Morale