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Maybe consider Firebreathing .... You can place it on something big or on something that could become big like Figure of Destiny and then just pump it for more life gain! Also think about adding Urabrask the Hidden so you have a better possibility of your creatures getting through...
Divine Deflection , Lightning Helix and Intimidation Bolt all fit a nice theme together, especially with Balefire Liege . They all deal damage and they all gain life (or prevent attacks). On the other hand, Awe Strike is a purely protective card which doesn't fit this theme. It can be a bunch of life gain for one card, but it doesn't give any push towards your win condition.
Spitemare might find a nice home here.
Otherwise, this looks like a fun deck :)