That number should be 17 or higher
For starters, youll need a few key cards in play
Aleshas raid ability rewards you for staying on the offensive, reanimating a creature from your graveyard at the end of any turn you attacked
In general, spells with the free mechanic cost a bit more than they normally would (~1.5 mana), but in return for this initial overpayment, you get all that mana back
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