Alongside something that grants deathtouch, the 1/1 can destroy creatures at instant speed: Even without the combo, there are enough utility creatures in Commander and Premodern that at least one copy is practically a must have in Goblins decks
At this point, Ill circle back to Avacyn, as I believe shes the perfect example of how to generate VCA in EDH
Edge whitening and surface lines are the usual killers
This showcased synergy between characters , including abilities or gameplay that could only be used if other qualifying characters were on the field , like Bashful not being able to quest unless there were other Dwarfs in play
Some Decks love to have their cards destroyed, however, like Unchained , which can give the Deck an additional advantage via Special Summoning an Unchained monster from the Deck, as all their Spells/Traps have that effect