The Archive of Esoteric Secrets
7-level Evocation
You fire three beams of purified starlight energy and shoot them
forth at targets within range. You can shoot the beams all at one
target or split them between several. Make a ranged spell attack
for each beam. On a hit, the target takes 5d10 fire damage, and
is blinded for 1 minute.
Should a creature that is blinded by this spell attempt to cast
a spell of their own, they must succeed on a Wisdom saving
throw or have the spell fizzle and do nothing, wasting the spell
slot. A creature can make a Wisdom saving at the end of each of
it's turns to end the blindness on themselves.
At higher levels: When you cast this spell using a spell slot
of 8th level or higher, you create one additional beam for each
slot level about 7th.