Instigate the Rabble

When you cast Instigate the Rabble, create three 1/1 black and red Human creature tokens with menace.
Whenever you lose life for the first time each turn, create a 1/1 black and red Human creature token with menace.
Discard a creature card: Create a 1/1 black and red Human creature token with menace. Activate only once each turn.