i like the summoners that add abilities to friendly monsters rather than just buffs and debuffs. it's a fun twist that you got from the untamed legendary summoners, but this is nice for only 3 mana.
there are a couple others i have my eye on too, but i'll just grab them on the market. i didn't bother buying any dice. they won't be worth the dec - similar to the pack problem. the mean is blown out of whack by the very rare GFL skewing the average pack value too far up. the vast majority of orbs and packs, and now dice, will be worth well under their buy price.