League of Legends is set in the fantasy world of Runeterra, where champions hailing from various regions and factions vie for power and glory. The game is primarily played in a 5v5 format on Summoner's Rift, where the goal is to destroy the opposing team's Nexus. There are also other modes such as ARAM (All Random All Mid), where players fight on a single lane, and various rotating game modes that offer different challenges and gameplay experiences. When you embark on your journey, mmowow items can lend a helping hand when you need help. 

Champion Roles and Patch 14.13 Performance
Xerath and Ryze are both mages with distinct playstyles and roles within the game.

Xerath:
Xerath is a long-range artillery mage, excelling in poke and zone control. His abilities allow him to deal significant damage from a safe distance, making him a powerful presence in both the landing phase and team fights.

Ryze:
Ryze is a versatile mage with strong wave-clear and mobility. He scales well into the late game and has the unique ability to reposition himself and his team with his ultimate, Realm Warp.

Patch 14.13 Performance:

Xerath benefits from the current meta favoring long-range poke and control mages. His ability to safely deal damage from afar makes him a consistent pick.
Ryze has received minor adjustments, but his skill ceiling remains high, rewarding players who master his combos and positioning.
Abilities and Skill Order
Xerath:

Passive - Mana Surge: Restores mana periodically.
Q - Arcanopulse: Long-range skill shot that deals damage.
W - Eye of Destruction: AoE slow and damage.
E - Shocking Orb: Stun skill shot.
R - Rite of the Arcane: Long-range ultimate with multiple shots.
Skill Order:

Max Q first for poke and damage.
Follow with W for zone control.
Max E last, as it’s primarily for utility and stun.
Ryze:

Passive - Arcane Mastery: Enhances his other abilities.
Q - Overload: Main damage spell that resets cooldowns when used with other abilities.
W - Rune Prison: Root that scales with AP and mana.
E - Spell Flux: Bounces between enemies, amplifying damage.
R - Realm Warp: Teleport for himself and allies.
Skill Order:

Max Q first for consistent damage.
Max E second for the AoE and damage amplification.
Max W last, as it’s used for utility and control.
Runes and Builds
Xerath:

Runes:

Primary: Arcane Comet for poke, Manaflow Band for mana sustain, Transcendence for cooldown reduction, and Scorch for early damage.
Secondary: Inspiration tree with Biscuit Delivery for sustain and Cosmic Insight for additional cooldown reduction.
Builds:

Core Items: Luden's Tempest for burst damage, Horizon Focus for increased damage on CC'd targets, and Zhonya's Hourglass for survivability.
Situational Items: Void Staff against high magic resistance, Morellonomicon for healing reduction, and Banshee’s Veil for additional magic resistance.
Ryze:

Runes:

Primary: Phase Rush for mobility, Manaflow Band for mana sustain, Transcendence for cooldown reduction, and Gathering Storm for scaling.
Secondary: Resolve the tree with Bone Plating for early survivability and Overgrowth for health scaling.
Builds:

Core Items: Everfrost for utility and root extension, Seraph’s Embrace for mana and shield, and Zhonya's Hourglass for survivability.
Situational Items: Rabadon's Deathcap for high AP scaling, Void Staff against high magic resistance, and Banshee’s Veil for additional magic resistance.
Early, Mid, and Late Game Tactics
Early Game:

Xerath:

Laning: Focus on poking the enemy with Q and W. Use E defensively to deter all-ins.
Wave Control: Use W to clear waves while maintaining mana with passive procs.
Ryze:

Laning: Farm safely using Q and E. Use W to deter enemy engagement.
Wave Control: Use the E and Q combo to clear waves efficiently.
Mid Game:

Xerath:

Roaming and Teamfighting: Use R to initiate or finish off low-health targets. Position safely to maximize damage output.
Objective Control: Zone enemies from objectives with long-range poke.
Ryze:

Roaming and Teamfighting: Utilize R for strategic repositioning. Use combos to burst down priority targets.
Objective Control: Use wave-clear to maintain lane pressure and assist in securing objectives.
Late Game:

Xerath:

Teamfighting: Maintain backline position, using Q and R to deal consistent damage. Use E to protect yourself from divers.
Sieging: Poke enemies off towers and zone them with W.
Ryze:

Teamfighting: Use mobility to reposition and avoid crowd control. Focus on bursting down squishy targets.
Sieging: Utilize R for split pushing or grouping quickly for objectives.
Recommended Team Compositions
Xerath:

Engage Composition: Pair with champions who can engage and peel for Xerath, such as Leona or Malphite.
Scaling Composition: Combine with other scaling champions like Kayle or Vayne to ensure late-game power.
Ryze:

Split Push Composition: Pair with champions who can hold their own in 1v1 scenarios, like Fiora or Camille.
Utility Composition: Combine with champions who benefit from Ryze’s Realm Warp, such as Jarvan IV or Galio.
Why Xerath is More Recommended for Long-term Play
Xerath is more suited for long-term play due to his straightforward kit, long-range poke, and consistent damage output. He requires less mechanical skill compared to Ryze, making him easier to master. Xerath’s ability to influence fights from a distance and control zones makes him a valuable asset in most team compositions, providing reliable damage and utility throughout the game. However, when some players explore further and become familiar with a certain hero, some players will choose League of Legends buy skins

Detailed Analysis of Xerath and Ryze Against Corki in League of Legends
Introduction
When facing Corki in the mid-lane, both Xerath and Ryze require distinct approaches due to their unique abilities and playstyles. This guide will provide an in-depth analysis of their learning strategies, and mid-game, and late-game tactics, particularly focusing on how to handle Corki. It will also cover team fight techniques and practical tips for leveraging each champion's strengths.

Early Game Strategy
Xerath:

Laning: Xerath should focus on maintaining a safe distance and poking Corki with his Q (Arcanopulse) and W (Eye of Destruction). The key is to use these abilities to whittle down Corki's health while avoiding his skill shots and Valkyrie (W) poke.
Wave Management: Xerath can use his long-range abilities to last-hit minions and harass Corki simultaneously. Keeping the wave near the center of the lane will allow him to farm safely without overextending.
Objective: Survive the early game without giving Corki any kills. Utilize Xerath's superior range to out-poke and force Corki into uncomfortable trades.
Ryze:

Laning: Ryze needs to play defensively in the early game. Use Q (Overload) and E (Spell Flux) to farm from a safe distance. W (Rune Prison) should be reserved for disengaging from Corki's aggressive plays.
Wave Management: Focus on last-hitting with basic attacks and spells, ensuring you do not push the wave too aggressively. Keeping the wave closer to your tower will provide safety against Corki’s harassment.
Objective: Farm safely and look for opportunities to poke Corki with Q and E combos. Avoid extended trades until you have a few core items.
Mid Game Strategy
Xerath:

Roaming and Teamfighting: Use your R (Rite of the Arcane) to assist other lanes from afar. In team fights, position yourself at the backline and use your long-range abilities to deal consistent damage while avoiding Corki’s burst.
Wave Management: Push the wave quickly with Q and W to free yourself from roaming and applying map pressure.
Objective: Apply pressure on Corki by zoning him with your superior range. Force him to use his Valkyrie defensively, reducing his mobility in skirmishes.
Ryze:

Roaming and Teamfighting: Ryze’s Realm Warp (R) is crucial for making impactful plays around the map. Coordinate with your team to catch out-of-position enemies or to make quick rotations to objectives.
Wave Management: Clear waves quickly with E and Q combos, enabling you to roam and assist side lanes.
Objective: Use your mobility to outmaneuver Corki and create advantageous situations for your team. Aim to catch Corki out of position with your crowd control and burst him down.
Late Game Strategy
Xerath:

Teamfighting: Maintain a safe distance and utilize your full combo (Q, W, E, R) to poke and zone enemies. Prioritize hitting Corki with your abilities to reduce his effectiveness in fights.
Positioning: Stay at the backline, using terrain to your advantage. Xerath's long range allows him to impact fights without exposing himself to danger.
Objective: Focus on poking down key targets before a full engagement. Xerath’s poke can significantly weaken the enemy team, making it easier for your frontline to engage.
Ryze:

Teamfighting: Utilize Ryze’s burst and sustained damage to target priority enemies. Use W (Rune Prison) to lock down Corki and other key targets, allowing your team to follow up.
Positioning: Stay close to your team, ready to use Realm Warp to reposition your team or to catch the enemy off guard. Ryze’s mobility is key to both initiating and escaping fights.
Objective: Leverage Ryze’s damage and utility to secure key objectives. Use Realm Warp for sneaky Baron or Dragon plays, or to quickly rotate and apply pressure on the map.
Practical Tips and Combos
Xerath:

Skill Combos: Start with E (Shocking Orb) to stun Corki, followed by W (Eye of Destruction) and Q (Arcanopulse) for maximum damage. Use R (Rite of the Arcane) to finish off low-health targets.
Positioning: Always keep a safe distance from Corki and other threats. Use your range to your advantage and avoid unnecessary risks.
Ryze:

Skill Combos: Use E (Spell Flux) on a minion or Corki, then Q (Overload) to deal AoE damage. Follow with W (Rune Prison) to root Corki and cast another Q (Overload). Repeat E and Q as cooldowns permit.
Positioning: Stay mobile and use brush or vision control to your advantage. Ryze’s damage output increases with better positioning and target selection.
Team Composition and Engage Strategies
Xerath:

Strong Engage Composition: Pair Xerath with champions like Malphite or Amumu who can initiate fights, allowing Xerath to follow up with his high burst damage from a safe distance.
Scaling Composition: Combine Xerath with other late-game champions like Vayne or Kassadin to ensure strong late-game power.
Ryze:

Split Push Composition: Ryze excels in 1-3-1 setups where he can split push while having the mobility to join fights quickly with Realm Warp. Pair him with champions like Shen or Twisted Fate for a global presence.
Utility Composition: Ryze fits well in compositions with champions who can protect him, such as Janna or Lulu, enabling him to dish out consistent damage without being easily focused.

Conclusion
Both Xerath and Ryze offer unique strengths when facing Corki. Xerath’s long-range poke and consistent damage make him a formidable opponent, while Ryze’s mobility and burst potential offer dynamic playmaking opportunities. Understanding the nuances of each champion and their optimal playstyles can significantly improve performance in the mid-lane. Xerath’s straightforward gameplay and poke potential often make him a more reliable choice, especially for players looking to maintain a safe distance while dealing significant damage.

Mastering these champions and applying their strengths in practical scenarios will undoubtedly provide a competitive edge in the mid-lane and contribute to overall success in League of Legends.

I hope this detailed guide helps players enhance their gameplay with Xerath and Ryze. Good luck on the Rift!