Good utility cards but playing them mainly for their countering potential is unadvisable
It doesn't have to attack the same player, planeswalker, or battle as your other Rats
Not only does [c]Dawn of Hope[/c] achieve this, but it also creates some tokens with lifelink if youre running out of ways to gain life
For example, Complains Clerk has "Whenever you roll a 1, create a 1/1 white Clown Robot artifact creature token." If you choose that ability, you ignore everything up to the first comma, ending up with "Create a 1/1 white Clown Robot artifact creature token." Some triggered abilities have an "intervening if" clausethat is, they are written in the form of "When/Whenever/At [trigger event], if [condition], [effect]." If you choose such an ability with Trigger Happy, you ignore the trigger event, and the ability will go on the stack even if the intervening if condition is not fulfilled, but the ability will still check the intervening if condition as the ability tries to resolve
Since this color pair isnt exactly known for having card draw or draw engines, were taking some liberties here and also considering a bonus in resources as card draw