Wind-Rider Tengu

Flying, vigilance
{w}{u/r}: Focus Chi 2. (Put 3 chi counters on this
creature, it is focused for as long as it has a chi counter
on it. At the beginning of your upkeep, remove a chi
counter from this creature.)
As long as Wind-Rider Tengu is focused, it may
block an additional creature for each Chi counter
on it.