Magic: The Gathering Comprehensive Rules

Example: If a 3/4 creature gets -5/-0, it’s a -2/4 creature. It deals no damage in combat. Its total power and toughness is 2. You’d have to give it +3/+0 to raise its power to 1. Example: Viridian Joiner is a 1/2 creature that says “{T}: Add an amount of {G} to your mana pool equal to Viridian Joiner’s power.” ................
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