Very good article, your strategy is quite interesting, in fact regarding summoners I have a very similar thought to yours, the only thing that causes me some alert is how they go up when they are removed from the Spellbook, Arlic is an example of that.
But waiting to buy them after optimizing the attack cards is certainly a great idea.
Thanks for sharing
That's true but Alric is also out of print so as long as Chaos Legion packs are available the price shouldn't get too high for these summoners but you never know.