As long as it's your turn, Ratcatcher Trainee has first strike.
Pest Problem 2R
Create two 1/1 black Rat creature tokens with "This creature can't block." (Then exile this card. You may cast the creature later from exile.)
During your turn, this creature has first strike.
Create two 1/1 black Rat creature tokens with "This token can't block." (Then exile this card. You may cast the creature later from exile.)