Aegis of Assault and OA

[vhailor]

I mark with my swordmage an enemy and attack another with Booming Blade.
The target I hit moves away in his turn and provokes an OA from me and also takes 1d6+[CON] damage.
The enemy I've marked attacks an ally, and that allows me to teleport and make a melee basic attack.
Is the above correct? The granted OA prevents me from using Aegis of Assault or not?

 

[Lord Ernie]

PHB, page 268, Triggered Actions. Yes, you are correct. You can both make an OA and use Aegis of Assault, since one is an opportunity action, and the other an immediate action.

 

[vhailor]

Thanks