Tokisaki Kurumi

Whenever you put one or more time counters
on a permanent you control, create a 1/1 white Soldier creature token.

Whenever Kate Stewart attacks, you may pay {8}.
If you do, attacking creatures get +X/+X until end
of turn, where X is the number of time counters among permanents you control.

"I'm not pretending to be an ally of justice. I'm just a villain whose interests don't match yours."