Winnower's Snare

Elves you control get +0/+1 and deathtouch
until end of turn. Then target Elf you control
fights target creature you don't control. (Each
deals damage equal to its power to the other.)
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Gilt-Leaf Winnowers were expert trackers who
specialized in the hunting and killing of creatures that
were either no longer beautiful by elvish standards,
or were simply ... not elves.