Elise's Spider Form and Spider Form abilities do not cost mana and can be prioritized when you are trying to conserve mana.
When in Spider Form, Spiderlings will attack the target that Elise uses Venomous Bite on.
Spider Form is most effective at finishing off enemies with low health; Human Form's Neurotoxin does more damage to healthy foes.
Attack Ornn to keep him from creating items in lane.
Try to stay away from walls. Ornn is much less strong if he cannot stun you.
The stat comparisons provided here clarify several important Elise versus Ornn matchup statistics that can help you distinguish the differences and similarities between these two champions. As an example, Elise’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Ornn’s ratio of NaN, indicating that Elise may be more central to her team's team fighting capability than Ornn. This observation is largely caused by the difference in kills.
Elise typically has a much larger longest kill spree than her enemy does. Commonly, she takes a similar amount of damage to Ornn. This is usually reflective of differing health capacities; however, it can also imply that the one champion has less agility and thus is unable to kite away from additional harm when engaged or poked.
Both League of Legends champions are great champions. Both champs have their pros and cons. In the game's current meta, Elise usually fairs equally well when facing off against Ornn, with a 49.8% win rate. Thus, Elise makes an ok counter to Ornn.
While Elise does have a lower winrate than Ornn, when facing one another, Elise also has a much greater level of difficulty that makes her a more difficult champ to develop with. You still need to be cautious when picking Elise into Ornnas her relative depth means you may not be able to unleash her full potential without a significant amount of practice beforehand.
Moreover, Elise has almost no amount of utility and CC, a similar amount to Ornn. This makes her just as valuable during teamfights, especially when fighting champions with a lot of burst damage.
While there is not a single best champion overall in League of Legends, in Elise vs Ornn matchups, Ornn is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your allies during late stage team fights.
Elise is a somewhat poor counter to Ornn. Focus your gameplay on keeping up your gold income and destroying objectives. If you can do that, you should do very well as Elise against Ornn.
To truly master Elise to counter Ornn during both the early game and mid / late game phases of League of Legends, you should keep reading to gather a few extra tips and tricks for this matchup. If you mind the build and tips displayed here, you will grow your win rate by a lot and be closer to League of Legends pro players.
Elise on average picks up a lot less CS relative to Ornn. Champs who on average don't earn much CS usualy don't require much CS to be valuable teammates, such as sup champs. They are able to scale well off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, typically require a lot of items to be effective. In either situation, try to exceed the numbers reported here to do well.
The ideal items to prioritize in your Elise versus Ornn build include Night Harvester, Zhonya's Hourglass, and Shadowflame. When Elise combined at least these three pieces in her build, she performed significantly better vs Ornn than with most other common counter builds. In fact, Elise had an average winrate of 49.8% when countering Ornn with these items in her kit.
To have the best chance of crushing Ornn as Elise, Elise players should equip the Electrocute, Cheap Shot, Eyeball Collection, Relentless Hunter, Nimbus Cloak, and Waterwalking runes from the Domination and Sorcery rune sets. Out of all the runes players chose for Elise vs Ornn LoL games, this mix of runes resulted in the highest win rate. Moreover, these runes averaged a 49.8% winrate overall.
By default, tips, stats, and builds on how to beat Ornn as Elise are shown for all skill levels combined. If you want to scope the statistics and builds to a distinct division, you should use the selection menu above.