Slayer Unlocks

There are multiple different slayer unlocks that can be purchased throughout the slayer skill by spending your slayer points.
But which one will you unlock first and how much do they cost?

Bonus	Price	Perk
Extra Block	150 points	Unlocks the ability to use the 4th block slot.
Another One	150 points	Unlocks the ability to use the 5th block slot.
Hard Tasks	25 points	Unlocks the ability to be assigned hard tasks.
Boss Tasks	2500 points	Unlocks the ability to be assigned boss tasks.
Co-op Slayer	150 points	Unlocks the ability to be assigned a slayer task with a partner.
Winter is Coming	750 points	Unlock the ability to get Lodsmok tasks (Requires Boss Tasks)
Beware of the Dog	750 points	Unlock the ability to get Cerberus tasks (Requires Boss Tasks)