I uploaded a tri-brigade deck not too long ago, in which I go into more detail about how the pure deck works. Anyway I found that Small World actually works really well in this deck and it can be even better with the Destiny Hero engine I included in the deck. Small World and the Destiny Hero engines that I included in the deck can be swapped for Desires/Solemn Strike/Dragoon Engine/Zeus Package or something of the sort. This deck has so much free space and is fun to see what all can fit in the deck. Currently the deck is 43 cards, and if you have any other suggestions on some other cards I would be happy to see any input in the comments. Also here are some Small World lines of play that could be used.
Gamma/Ash/Fraktall (in hand) -> Kitt (in deck) -> Rescue Cat (adds to hand)
Effect Veiler (in hand) -> Ash (in deck) -> Fraktall/Kitt/Nervall (adds to hand)
Destiny Hero Celestial (in hand) -> Fraktall (in deck) -> Kitt (adds to hand)
Psy-Frame Driver (in hand) -> Destiny Hero Dasher (in deck) -> Kitt (adds to hand)
These are the most optimal ways I have found that Small World can be used in the deck, and using Crow also has some cool interactions in the deck. Also it has the added bonus of being able to unbrick your hand if you open garnets or too many handtraps. Anyways this is my spicy version of Tri-Brigade after BODE, hope you guys enjoy.