Hum, interesting option, using Allex! Haven´t seen much heal outside Reno decks and the eventual hero power of Dragon Priest. I don´t personally own Alex, but have some dust sitting from the duplicate cards issue, as soon as I get to test decks a little more, I might craft her, together with Kazakus.
Another possible option is Antonidas, which I also don´t onw. Do you have an oppinion on Alex vs Antonidas? Alex seems faster, but less reliable, due to armor, heal,etc.