Drag to the Bottom
Sorcery (CMC 4)
Domain -- Each creature gets -X/-X until end of turn, where X is 1 plus the number of basic land types among lands you control.
Decks with Drag to the Bottom
[DMU] Dominaria United #91 (R)
[DMU] Dominaria United #401 (R)
[PDMU] Dominaria United Promos #91p (R)
[PDMU] Dominaria United Promos #91s (R)
[PRM] Magic Online Promos #103430 (R)