Sliver Overlord [Scourge] Windgrace Set: Portal Three Kingdoms Type:

Set: Portal Three Kingdoms Type: Creature — Ox Rarity: Uncommon Cost: {3}{G} Swampwalk (This creature can't be blocked as long as defending player controls a Swamp

"The trick is

After 5 rounds

A new Level 8 Fiend absorbs your opponent’s monster as Link Material to Link Summon the first of a series of DARK Link Monsters that can do the same

Sliver Overlord [Scourge] Windgrace Set: Portal Three Kingdoms Type:Set: Scourge Type: Legendary Creature Sliver Mutant Rarity: Rare Cost: {W}{U}{B}{R}{G} {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.) The end of evolution.