Level 3: Meditation
Level 7: Retribution
Level 10: Quick Cantrips
Level 15: Augmented Cantrip
Level 18: Channeled Energy
The Eldritch Knight is no longer limited to the Abjuration and Evocation domains, but has the same spell list as the Wizard.
Starting at 3rd level, if you meditate during a short rest, when you finish that short rest, you can choose expended spell slots to recover. The spell slots can have a combined level that is equal to your proficiency bonus or less.
Once you use this feature, you cannot do so again until you use a number of spell slots that have a combined level that is equal to your proficiency bonus or more.
You can use this feature a number of time equal to your proficiency bonus. When you finish a long rest, you regain all expended uses.
Starting at 7th level, if a creature hits you with a melee attack, you can use your reaction to cast a cantrip targeting that creature.
Starting at 10th level, you can cast one of your cantrips in place of one of your attacks.
Also, when a hostile creature’s movement provokes an opportunity attack from you, you can use your Reaction to cast a cantrip at the creature, rather than making an opportunity attack.
Starting at 15th level, when you cast a cantrip with a full action (not when replacing one of your attacks, quickened by a Sorcerer's metamagic or something like that), while holding a weapon in your hand, or hands if it's a two-handed weapon, after the cantrip deals its damage you can use your reaction to augment that damage.
If you do, roll the weapon's damage and add it to the cantrip's damage. The weapon's damage is the same type as the cantrip's damage. If the cantrip rolled a critical hit, the weapon's damage will also roll critical damage.
Starting at 18th level, you can add your Constitution modifier to all your spell's damage and weapon attacks. The type of the additional damage to your weapon attacks is Force.