Steel Dragons are often considered a pain to deal with,and they fit the bill as a task you'll want to block. These dragons have high hitpoints,deal significant damage,and are weak to RuneScape gold Earth spells,which were recently added through Project Rebalance,but that doesn't significantly speed up the kills. Moreover,Steel Dragons require frequent trips due to the high cost of their dragonfire attacks and the time it takes to kill them. While their loot table can be slightly more rewarding than some others,the time spent and the danger involved make them inefficient for most players,and as such,they're a task that should definitely be blocked.

In conclusion,when grinding for 99 Slayer,efficiency is key,and the Block List is one of the most valuable tools in ensuring you maximize your XP per task. By blocking monsters like Hellhounds,Cave Krakens,Black Dragons,Greater and Black Demons,Spiritual Creatures,and Steel Dragons,you can focus your Slayer efforts on tasks that offer faster kills and better rewards. Remember,Slayer is a marathon,not a sprint,so make sure to prioritize enjoyment alongside efficiency to avoid burnout on your path to 99 Slayer.

Getting to 99 Slayer in Old School RuneScape (OSRS) is a long journey,and it's definitely not for the faint of heart. For those who have reached the coveted 99,having earned a total of 13,034,431 experience in Slayer,it's easy to understand just how important the Block List is—and how to use it wisely. If you're wondering,yes,I do have 99 Slayer,and it took years of dedication. 

However,achieving 99 Slayer isn't just about grinding; it's a natural byproduct of training your combat skills. Slayer is more of a supplementary skill that you build on while training other combat stats.

However,to make this process more manageable and efficient,you can choose to block certain tasks you find unenjoyable by spending 100 Slayer reward points per task at a Slayer Master. 

If your aim is to buy Runescape gold gain the most experience possible in the shortest amount of time,avoiding tasks that slow you down is crucial. But remember,enjoyment should always take precedence over efficiency. Burning out from boring or difficult tasks will only slow your progress.