Blade Blast is a skill that detonates blades around the ground, which is generated by the likes of Blade Cortex or even Ethereal Knives. These blades can be used to make Animated Weapons for POE currency trade boss battles. Wands have an overhauled Kinetic Bolt, forking every time and bouncing randomly. The last skill revealed is Stormbrand, making runes around you as you channel that can siphon your mana to detonate with fantastic effect.
Many Path of Exile fans have complained that the Conquerers of the Atlas expansion was overly confusing and encouraged players to not finish maps for optimal Atlas bonuses. This is being addressed "Delirium." Returning seller recipes ought to allow players to reverse progression in their Atlas to target-farm items they wish. Conquerers are now deterministic when it comes to spawning, making progression through the Atlas much easier. Vaal side regions and the Temple of Atzoatl are also receiving some much-needed focus to keep them up to date with modern mechanics and systems.
Jewels are particular items that players can socket into their ability tree to get extra bonuses. While that's nothing new, passive ability jewels are. These jewels are rewarded with successfully finishing Delirium experiences, capable of incorporating new passives in your tree to buy POE currency spec into. These may range from extra life nodes to completely new notables to change the way your personality functions. With over 280 new notables there is a substantial quantity of experimentation that players may opt to pursue.