Melira, Sylvok Outcast + Phyrexian Unlife

Prerequisites

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Steps

1. 1Phyrexian Unlife prevents you from losing the game due to having zero or less life, and causes all damage that would be done to you while you have zero or less life to be infect damage.
2. 2Melira prevents you from getting poison counters, thus negating the infect damage.

Effects

• Lock
• You can't lose the game due to having 0 or less life