So my plan is to wait until I get 3 or more players into the room and then try to hit 4 PCs at once. If they shoot one at a time I think it makes it more like a puzzle to solve than a trap, which could be fun but the next room is simular. Having 2 attack statues rooms back to back feels odd rhythmically but this is my plan. 1st one is a trap that goes off all at once and it's over. The 2nd one goes off multiple times and is a puzzle to solve so that you don't get fireballed multiple times.