Metalcraft: Although unrelated to the graveyard, Metalcraft's condition of controlling three or more artifacts resembles Threshold's approach of "Have X of something to power up your cards." Ascend: If you control ten or more permanents, Ascend gets the City's Blessing, which, much like Threshold, permanently upgrades some cards' power levels
All it costs is discarding 1 card, which is crazy good value
Scovillain ex 037/191 Loading
This card is not going to come cheaply, with MP copies still floating around the $50 range, so you'll need to settle for a damaged copy if you're trying to stick to a smaller budget
This kind of disruptive play harks back to Sylveon GX from Guardians Rising, which could use its Plea GX to enact similar retribution
If you have a creature with at least three power, youll always gain more than youre spending