Nissa Revane 
Legendary Planeswalker — Nissa
+1: Search your library for a card named Nissa's Chosen, put it onto the battlefield, then shuffle. +1: You gain 2 life for each Elf you control. −7: Search your library for any number of Elf creature cards, put them onto the battlefield, then shuffle.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL