Havengul Lich, Phyrexian Altar, and Phyrexian Walker on the battlefield.
All permanents on the battlefield.
Sunstrike Legionnaire on the battlefield. Retraction Helix and Phyrexian Walker in hand. available.
Sunstrike Legionnaire on the battlefield. Banishing Knack and Phyrexian Walker in hand. available.
All permanents on the battlefield. Retraction Helix in hand. available.
Phyrexian Walker in hand. All other permanents on the battlefield.
All permanents on the battlefield. Demonmail Hauberk attached to Phyrexian Walker.
Mana Crypt in hand. All other permanents on the battlefield.
At least 2 islands and available. High Tide, Snap and Lore Drakkis in hand. Walker on the battlefield.
Havengul Lich, Thermopod, and Phyrexian Walker on the battlefield.
Havengul Lich, Krark-Clan Ironworks, and Phyrexian Walker on the battlefield.
Havengul Lich, Ashnod's Altar, and Phyrexian Walker on the battlefield.
Phyrexian Walker in hand. Sword of the Realms on the battlefield. All other permanents on the battlefield.
All permanents on the battlefield. Grima Wormtongue does not have summoning sickness.
Cavalier of Dawn on the battlefield enchanted with Infinite Reflection. Phyrexian Walker in hand.