As you can see, what i wanted to do here is making a consistent version of the Heal Paladin we're gonna play. The fact that High Priest Thekal is a legendary requires a different deckbuilding, because that card is CORE in that archetype. You can't just hope to draw it (or is it? That's what will make the difference between a playable deck and a good one imo. If the legendary is not "strictly" necessary on early turns the archetype will be good. Otherwise it won't.)
Alexstrasza is of course an interesting card. Both because you can easily have less than 15 HP (for the armor stuff), and because you should need a finisher in this deck.
To be fair, the deck CAN be refined. Just take the idea around it.