Emi, Ronin of Takenuma

Whenever Emi, Ronin of Takenuma attacks
alone, create two 2/2 black and white Dragon
Spirit creature tokens that are tapped and
attacking. Exile them at the beginning of the next
end step.
As long as this creature has flying, creature
tokens you control have flying. The same is true
for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.