Sliver Overlord

Mana Cost: {W}{U}{B}{R}{G}
Total Cost: 5
Type: Legendary Creature — Sliver Mutant
Description: {3}: Search your library for a Sliver card, reveal that card, put it into your hand, then shuffle.
{3}: Gain control of target Sliver. (This effect lasts indefinitely.)
Power: 7
Toughness: 7
Colors: B,G,R,U,W