
Rappa cleaves through Dark Sam in 3 cycles
Ah yes the Break edition of the Dark Sam fight, with 3 puppets on the first side, with their 3 toughness bars allowed Rappa enough damage to squeeze by a Zero cycle, and the main Optimization I had to do to make Dark Sam as efficient as possible was to let Dark Sam break itself rather then Rappa breaking the toughness, to get his bugs back up quickly. Which allowed Rappa to Brute force through the tanky 20m HP in 3 cycles.
Investment
E0S1 Rappa
E1S1 Dahila
E2S5 Pearls Fugue
E6S5 DDD HMC
The MOC AA can be nice but you'll need Rappa to act every time before each cycle ends to get the most use of it.