Take what you need To get the right Goblins in the deck, Goblin Recruiter and Boggart Harbinger are of solid use
Consequently, I and the majority of other Jund players have chosen to stretch the mana as far as it will go, playing Garruk, Primal Hunter and Arbor Elf (strict green mana requirements) at the same time as Liliana of the Veil and Victim of Night (strict black mana requirements)
Recruiters modest size and cost make him easy to tutor for and cast, where he then allows the combo player to deterministically draw and play every creature in their deck on the spot
Merfolk, in particular, is great at holding up a single mana and making it appear as if its a curve issue and not representing a counterspell
#7 - Cloud, Ex-SOLDIERCloud, Ex-SOLDIER For years, I've struggled with building Equipment decks
So go ahead, turn your whole board into Villains and let Mysterio do his thing