Derringer, for those unfamiliar, is a format in which deck building is limited to 1 of a card title. You can still play 4 of a value. Our local game store is doing a Derringer event, so I whipped up some basic archetypes for the format in case anyone comes to the database looking for ideas.
For this deck, I wanted to see how many horses could be played for Calling The Cavalry and other similar horse synergies. Turns out, if you start Diego Linares and/or Prof. Aloysius Roe, you can play 9 horses pretty easily! Clown Carriage and La Quema could potentially fit in, I just didn't think they were worth the slots.