Currently running a D&D group through
Vecna: Eve of Ruin (a campaign I cannot in good conscience ever recommend), and I finally got around to painting up the titular big villain hisself, as well as the bearers of his Eye and Hand, a pair of his three-headed Skull Lords and the devil that serves as a mini-boss later on.
I have high hopes that at least one of them should last more than one round of combat against the
PCs!