(Boiler-Bosk isn't a spell.)

When Boiler-Bosk enters the battlefield, sacrifice it unless you pay 1 life.

Boiler-Bosk is indestructible. (Destroy effects and lethal damage don't destroy it.)

When Boiler-Bosk enters the battlefield, put a land you control on the bottom of its owner's library.

: Add  to your mana pool.