Tengu Swiftstriker

Flying, Ninjutsu {1}{r}
At the beginning of your end step, if Tengu Swiftstriker doesn't have a First Strike counter
on it, put one on Tengu Swiftstriker.
Remove a counter off of Tengu Swiftstriker:
destroy target artifact or enchantment. If that
counter was a First Strike counter, draw a card.