Sliver Overlord

スリヴァーの首領 (Sliver Overlord) (ja)

Legendary Creature - Sliver Mutant | Power/Toughness: 7 / 7 (CMC 5)
: Search your library for a Sliver card, reveal that card, put it into your hand, then shuffle.
: Gain control of target Sliver. (This effect lasts indefinitely.)