Combos Utilizing Attrition

Sacrafice the creature and then bring it back to your library

sac your creature to gain their enchantments. simplicity, people! simplicity!!

sacrifice penumbra wurm with attrition, destroy target creature, all opponents sacrifice a creature, you get two 6/6 creatures back at the end of turn

get a bunch of small black creatures, kill them and get them back with unearth, and exhume, and do it all over again, until you have 20 counters on black market.thenpestilencefor20anddon'ttakedamage

Use the breeding pit to creat a token (black creature) then sacrifice the token using attrition to kill off a non-black creature!

a constant sorce of destroy non-black creatures

Destroy two creatures for every 5 mana you pay, they can even be black creatures.

create a pest, sac it to attrition, gain 4 life to offset 4 life loss from dross harvester at end of your turn

Chose mercenary 4 the incubator. Bring out a strongarm thug (one black mana). Sacrafice 2 attrition. Bring out 2nd stronarm thug, retrive 1st. Sacrafice 2nd, repeat to kill creatures 4 2 black mana!

have attrition in play. attack with dark maze. before end of turn, spend b & sac dark maze to destroy opponent's nonblack creature