Luka, the Traveling Sound - Liliana of the Dark Realms (SLD-1593) - Secret Lair Drop / Luka, the Traveling Sound (Borderless)

+1: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.
−3: Target creature gets +X/+X or -X/-X until end of turn, where X is the number of Swamps you control.
−6: You get an emblem with "Swamps you control have ': Add .'"