Which Witch Tongue Twister?

I'm writing a tongue twister - it came to me this morning in the car.  Tell me which one you like better.

Witches must watch their wishes

for wishes can overwhelm witches.

     ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

Witches must watch their wishes for which wish that will bring to them riches....

Or maybe you can help come up with a (better?) second line.

Complete the following:
Witches must Watch their Wishes...


<3,
Misstache