Each game is a race to score 20 points, but youll occasionally need to slow opponents down by defeating stronger opponents who are scoring too many points
The activated cost is slightly higher and it is gated to Sorcery speed activation which may make this piper a secondary pick, but increased redundancy and a relevant Werewolf transform may make this one worth finding a spot for
I would put it into a red/black graveyard matters deck and go to town
Pretty much any half decent one mana burn, mana dork, card quality spell or targetted discard spell are in
Eventually, you can even make the Haunted Screen into a threat altogether by investing seven mana to turn it into a 7/7 spirit creature easily big enough to kill your opponents with just a few attacks if they dont concede out of fear beforehand
Similarly, once an ability of a creature you control with power 2 or less has triggered an additional time due to Delney, Streetwise Lookout's last ability, increasing its power to 3 or greater won't remove that additional triggered ability from the stack