This Magic the Gathering combo looks at two cards from Standard: Melira, Sylvok Outcast, and Phyrexian Unlife.
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Here’s how it works:
Play Melira, Sylvok Outcast, and your opponents will not be able to give you poison counters. Play Phyrexian Unlife, and all damage dealt to you will be in the form of poison counters, and thus negated for as long as you can protect your combo.
If you play this with Spellskite (also from New Phyrexia, shown above), it will be more difficult for your opponent to target the combo.