Greiger soon became his replacement, using a sixth Earthbound Immortal, Chacu Challhua
Thats a very easy requirement to meet, and it will help to take your opponents down in no time

Activated Sleeper Adaptive Sporesinger Akki Scrapchomper Alabaster Host Intercessor Alabaster Host Sanctifier Ambulatory Edifice Annex Sentry Apostle of Invasion Archfiend of the Dross Argentum Masticore Armored Scrapgorger Aron, Benalia's Ruin Ascendant Evincar Atmosphere Surgeon Atraxa's Skitterfang Atraxa, Grand Unifier Atraxa, Grand Unifier Atraxa, Praetors' Voice Attentive Skywarden Axiom Engraver Ayara, Furnace Queen Balduvian Atrocity Basilica Shepherd Battlefly Swarm Belbe, Corrupted Observer Benalish Sleeper Bilious Skulldweller Blackcleave Goblin Blade Splicer Bladed Ambassador Bladegraft Aspirant Blight Mamba Blight Pile Blight Titan Blightbelly Rat Blighted Agent Blightsower Thallid Blightsteel Colossus Blightwidow Blind Zealot Blinding Souleater Blistergrub Bloated Contaminator Bloated Processor Body Snatcher Bone Shredder Bonepicker Skirge Branchblight Stalker Brimaz, Blight of Oreskos Brudiclad, Telchor Engineer Brutalizer Exarch Burnished Dunestomper Cacophony Scamp Cankerbloom Capricious Hellraiser Carnifex Demon Cathedral Membrane Caustic Hound Cephalopod Sentry Chained Throatseeker Chancellor of the Annex Chancellor of the Dross Chancellor of the Forge Chancellor of the Spires Chancellor of the Tangle Charforger Chimney Rabble Chittering Skitterling Chrome Host Hulk Chrome Host Seedshark Chrome Prowler Cinderslash Ravager

Chart shows the price of Toy Parade BROL-EN037 at the end of each month going back as long as we have tracked the item.
The Green one is a 4-drop, "equip" that will let your equipped Durnan make mana equal to its power, which helps cast the creature you just exiled
Unlike a lot of the other warp creatures, the fact that you keep its counters on your board actually feels like the creature doesnt go away at the end of the turn