Bolts of Balthakk

Target creature an opponent controls gets -3/-3
until end of turn.
Overload {3}{u}{b} (You may cast this spell for its
overload cost. If you do, change its text by replacing
all instances of "target" with "each.")
Sorcerer Supreme —If you control a Stephen planeswalker, you may cast this spell for {2} or
for an overload cost of {5}.