Leovold, Emissary of Trest 
Legendary Creature — Elf Advisor
Each opponent can't draw more than one card each turn. Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderNOT LEGAL