Wraith of Echoes

Q: What happens if the first time a unit dies in a turn is actually two or more units dying simultaneously? Does it trigger twice?

Just once. If an ability triggers “the first time” something happens and that trigger condition is met multiple times simultaneously, you’ll pick one to count as the first.

Q: What about other units that die at the same time as Wraith of Echoes, such as to a mass damage spell like Unchecked Power?

No. Units that die also don’t “see” anything else that dies at the same time they do.

Q: Does Wraith of Echoes trigger on its own death?

No. Units don’t “see” themselves die unless they have an ability such as Deathknell that explicitly allows them to. For clarity, we are issuing an errata that adds the word “another” to Wraith of Echoes.

Wraith of Echoes

The first time another friendly unit dies each turn, draw 1