Elsariph, Chaotic Conduit

+1: Elsariph, Chaotic Conduit turns into a 5/5 Elsariph, Wild Sorceress with Hexproof and Haste until the end of your turn.
-4: Turn target creature into a 0/1 Potted Plant that can't block. Discard a card.
-7: You get an emblem with "All Potted Plants get +4/+4."