Bells of Braglesaggart

When Bells of Braglesaggart enters the battlefield,
choose two creature types.
Creatures of the chosen types get -1/-1.
Sacrifice Bells of Braglesaggart: Add three mana
of any one color.
"Things lauded as holy can be the opposite. Idols to
greed, hatred, and pride. Instruments of cursing.
Only righteous destruction may redeem them.