Withering Hex 
Enchantment — Aura
Enchant creature Whenever a player cycles a card, put a plague counter on this Aura. Enchanted creature gets -1/-1 for each plague counter on this Aura.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL