Anji Mito, Graceful Dancer

{x}{u}{w}, {t}: Create X 0/1 Blue Butterfly Spirit tokens. They gain Haste until end of turn.

Whenever you create three or more tokens during each turn, Tokens you control must
be blocked this turn, if able.

Whenever you create ten or more tokens during each turn, creatures your opponents control must block this turn if able and they
can block more than one creature