A gauntlet grinder that I’ve been working on with some success, although, a small sample size. So far the deck is 6/7 in complete gauntlet runs (48-1) — loss was due to lack of power draws in boss match. Sometimes research lab, spells/manacles, and one unit are enough for the win. Otherwise, it is likely that once an 8 cost unit is down the win is secured. I only ever market for Martyr’s Chains (most often) or Reclaim. Let me know what you think, or if you have any improvements.
*Update -- my play of the deck in gauntlet ended with 10/13 full rewards. Some of the wins were quite close -- top decking Makto in some cases. Simple deck -> play units, removal/stun, play big units. I'm sure there are more efficient, fun, and cheaper gauntlet decks that win at a higher rate than this one.