IMO, the best strategy is as MANY things as possible, like as many things as you can(I'm talking about rats, spells, the summoner, things that make things are the best for any strategy)
(I also almost beat the king without taking DMG like 3 times, also beat the king a lot)
depends on what type you are talking about(and im tslking about), if their is a 'see more' button, after you click it something should say along the lines of "play anyway"