How does this ability work with board wipes? (If I clear the board, do I get a Colfenor trigger for each creature of mine that died? Can Colfenor triggers target other creatures

All 17 Colorless Board Wipes in Magic Ranked - Draftsim

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Best removal no one knows about. : r/EDH

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How many cards do I discard to use both of the effects of these 2

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All 17 Colorless Board Wipes in Magic Ranked - Draftsim

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How does this ability work with board wipes? (If I clear the board