Nieve currently has 205 total task chance with every task unlocked.
For boss slaying, it would be best to block tasks which take up the most chance. We would not want to remove any GOOD tasks, however.
The tasks to block will be:
Black demons: 10 Nechyreal: 10 Spirit mage: 9 Sprit warrior: 7 Gargoyle: 7
This will bring down the total to: 162
For boss slaying, we have the following favorable tasks:
Tz-tok Jad: 9 General Bosses: 10 Abyssal sire: 10 Dagganoths Kings: 9 Kree'Arra: 7 Cerberus: 8 Kalphites Queen: 6 Kril'tsutsaroth: 6 King black dragon: 4 Kraken: 6 Thermo: 6
The chance for any off these tasks will be:
81/162, 50%.
When you have collected a boss pet, you will enter the post-pet phase of a task. Of the above list, you can only remove 2 tasks from your assignments list, effectively reducing the total task chance.
Tztok-jad: 9 Kree'Arra: 7
For a leftover: 65/146, ~44%.
As you collect pets, the boss task list will shrink, and shrink, and shrink, until you only have a few bosses left. At the least, you will have 6/146, ~4% for a boss task. At that point, you may want to ditch the slayer game and hunt the boss-off task.
For other tasks, you can choose to complete, or skip. Tasks should only be completed for EHP, or purely for speed. Tasks will fall into multiple categories depending on play style.
EHP tasks. Good for rank hunters, since inevitably boss-hunting will leave you with a surplus of post-99 slayer xp. These tasks will help secure you ever-falling slayer rank. These are costly methods, but are good for speed slaying and getting a new task fast, with the bonus of optimal xp/he. EHP is set to above 39k slayer xp/hr
Bloodvelds: 7 Elves: 6 Dust devil: 6 Blue dragon: 5 Fire Giants: 4 Suqahs: 4 Hellhounds: 8 Kaphites(post-princess): 6 Dagganoths(post-pets): 9 +Dark beasts: 5 *Smoke devil(post-pet): 6
57/146(162); 39%(35%)
Speed tasks. Super-fast tasks, these will allow you to finish fast and get back to boss-hunting. May require a cannon or costly method.
Mithril Dragons: 5 Wyverns: 2 Kaphites(post-princess): 6 Dagganoths(post-pets): 9 ~Unfavorable boss tasks: 10(variable) +Black dragons(post-prince): 4 +Ankous: 5 +Dark beasts: 5 *Smoke Devils(post-pet) : 6
52/146(162); 35%(32%)
Skip tasks. Steel dragons: 3 Kurasks: 3 Turoths: 3 Kraken(post-pet): 6 Scarabites: 3 *Smoke devils(post-pet): 6 Testing tasks: Abyssal demons(post-pet): 10 Iron dragons: 5 Aberrant specters: 5 Terror dogs: 2
24/146;16%(46/146; 32%) 24/162;15%(46/162; 38%)
~ "three and done" bosses. Works well with mostly all. Any post-pet bosses or unfavorable, no-pet bosses, should be set to the lowest amount. I recommend skipping Kree'arra; aviansie tasks allow more effective chinning/kills per hour. + The amount of these tasks can be altered, depending on your preference, quick task or EHP, do whatever amount suits you. Black dragons should be boosted for prince hunting, reduced for quick slaying. * Smoke Devils are slow using Godsword+Cannon. It is still EHP, but possibly a skip otherwise. Using the smoke devil savage slaying style method (ancients baby!), this task can be done stupid fast. 'Testing' tasks are try and see if you like tasks. May result in an immediate skip, and thus will be considered skip-tasks, except for abyssal demons. They are at most 32k xp/hr with whip chance. It's not terrible, but it is long and may be unbearable in the later stages. Spectres, with a cannon can be fairly quick, and using the herb bag, you can pile up a nice amount of herbs. Iron dragons, can be quick at about ~20 minutes, dropping bloods, darts, and providing bone-crushing prayer xp as well as a chance of a visage. Terrors dogs can be killed quickly, but the 0 prayer mechanic and no cannons may prove it to be difficult.
The favorable task list, using all boss tasks, EHP tasks, and speed tasks, will total a max of 138/162 of your tasks, or a nice 85%. Post pets, you will have 122/146 , or 83%.
Potential skips would make up 24-45/162, or 15-28% of your tasks. Post pet would land you at 24-45/146, or 17-31% of you tasks.
This ratio leaves you a lot of room for a stockpile of slayer points, good for skipping tasks noted above, or just skipping an uncommon task you don't feel like doing. For example, I'm all for EHP, but the smoke effect for dust devil tasks pisses me off. I skip all dust devil tasks, even though they are good EHP. I have hundreds of points to do so. The above list is just a guide, and task you don't like should be skipped providing you have the points!
Final notes and tips!
Organize your bank! Put you supplies, and gear into readily-available fashion. Don't play "Where's Waldo?" with your warrior ring.
Start a loot tab! And Organize it! Give yourself some jack-off material for those longs nights.
Play efficiently. Of course this game is about fun and relaxation, but time is a valuable resource, certainly more valuable than gp itself. Don't spend an afternoon killing iron dragons with fire bolt. Don't safe spot monsters with a rune crossbow. Setup your cannon, put on those offensive prayers and slap shit around man, 'cause you ain't got all day!
Focus primarily on supplies, cannonballs, and the best gear you can afford. Don't spend your whole bank on an sgs, stockpile up on supplies, kill bosses, and the money will come naturally. Don't waste your time. Make the most out of it. If you cannot afford to be efficient, back to Zulrah you go lol.