I've noticed a bit of a pattern.
Shade came out, and applied Shrouded upon starting a dungeon.
A bit later, he got his Epic, allowing him to re-apply Shroud.
Selwyn got his update, which made him start dungeons in Ice Form.
At the same time, you needed his Epic to allow him to use Ice Form again.
Now Alexandros' Damage Reflection buff isn't an ability, but rather, a passive his team starts with in each dungeon.
My theory is that Alexandros will get his Epic soon, which will grant his team Damage Reflection upon activation. Thoughts?