Combos Utilizing Soul-Exchange

lay a land then cast dark ritual then use one for pirturd imp then discard hypnox from your hand and then use 2 mana from the daark ritual to cast soul exchange for the hypnox

have the blood pet , or any thrull in play and a bog witch. use the witch to discard your super beast of choice. then use the mana produced to pay for the soul exchange.

discard cloudscaper somehow, (spellshapers work well) use soul exchange to sac a breeding pit thrull and bring in cloudscraper (15/15 since the thrull gave it +2/+2)

round 1. throw half in graveyard. round 3 play merchant (discard other half) round 4 soul exchange to swap big furry for merchant (after it does it's 1 point of damage) ;-) or use dance of the dead

discard spirit at end of first turn, use the darky (or a pedal or anything) to cast basal and then soul exchange for 8/7 unaffected. works better with 2 dark rituals for turn two.

same as before, but add thrulls as pawns, or for exchange

sacrifice the tokens from breeding pit (yes they're thrulls) to bring any creature from your graveyard into play with the counter.