Urza's Incubator [Commander 2015] Archenemy Schemes Molasses comes to mind

Molasses comes to mind

Players can't pay life or sacrifice creatures to cast spells or activate abilities

Set: Beta Edition Type: Creature — Zombie Rarity: Uncommon Cost: {3}{B} At the beginning of each end step

Those players sacrifice those permanents

Remove a charge counter from Umezawa's Jitte: Choose one —

Urza's Incubator [Commander 2015] Archenemy Schemes Molasses comes to mindSet: Commander 2015 Type: Artifact Rarity: Rare Cost: {3} As Urza's Incubator enters the battlefield, choose a creature type. Creature spells of the chosen type cost {2} less to cast. "Stop thinking like an artificer, Urza, and start thinking like a father!" Rayne, chancellor of the Tolarian Academy