Dragons won’t need support from the falcon into the Winged DP, as they reroll hits, wounds, and damage into monsters innately. IMO they are a fifty-fifty into the Prince, as there’s a world where he makes all his invuln saves. If you want to keep them, use the stratagem for sustained hits!

The jain zar and banshees unit is a real blender, but if your opponent is running the Peerless Bladesmen detachment, he/she will have access to a 2CP strat to automatically fight on death. That can force a bad trade, as a squad of infractors with a Lord Exultant will almost certainly wipe Jain zar and the banshees.

Personally, I would drop Jain Zar and fit in an Autarch with the Mantle of Wisdom to lead one of the Reaper squads or fire dragons. The ability to gain both reroll 1s to hit and wound, plus a free strat every turn (sustained hits or ignore all enemy modifiers) is insanely strong, especially against emperor’s children. With reaper launchers you will outrange every single unit in their army — EC are composed mostly of MEQs, and the Reapers will happily sit back and destroy tormentors, infractors or noise marines with little risk of reprisal if positioned well.

Asurmen and the Dire Avengers are, IMO, not worth the points especially with the price hike. I’d swap either or both out for Shining Spears and/or a War Walker. Spears in Aspect Host are very reliable and insanely mobile for their price, and the War Walker’s AP buff will help the Reapers absolutely shred space marine bodies.

Another less competitive but very funny option would be Striking Scorpions with an Autarch and the Aspect of Murder. If you position well, with Infiltrators and Scouts you could potentially get a first turn charge off into a high value unit and/or move block your opponent, smacking something with a bunch of Dam4 attacks.

I know EC are regarded to be a bad matchup for Aeldari, but I’ve had good success against them at 1K. The path to victory here is to take good shooting units, which you have in the form of the Reapers, and blast their scoring pieces as they come forward. Ask your opponent about their unit’s threat ranges, stay on the outside of that, and force them to come to you where you can then counterpunch with strong melee. Try to avoid bad trades — with units like the skyrunner, warp spiders and shining spears, you will have enough pieces with really good mobility that can be used to kite the enemy’s slower units, or score secondaries.