The spellbook is mostly composed of OSRS gold offensive spells that use blood magic and Teleportation Spell. Commonly used for popular high-level training methods. The focus is on utility spells that can aid you in your progress. There are also offensive ones.
This book is unique as this one does not include the combat abilities. It's within your reach at the point of 60% favorability to Arceuus house. You have 22 different spells to revive heads that have been ensouled to build Prayer levels. Have you ever wondered why there you see people fighting rats at the castle in Lumbridge as if it were an arena? An answer: it's not a pest management team or construction worker. They're not even bugged NPC. It is likely that you encountered splashers.
The basic concept behind it is that if you lower the strength of your magic bonus, the magic attack you cast has the chance of doing the least amount of damage and disappear, without hitting zero. This gives you the opportunity to attack the target continuously without harming it, giving you experience per cast.
Splash technique is utilized by many RuneScape players to boost their Magic while going afk, because it's almost the same as cutting a Yew log. There is no need to pay much focus on the screen as rats that are swarming around Lumbridge castle will not cause any harm. The only thing you need to do is press something on the screen or move your camera once every 20 minutes so that the game won't log you out.
How do I begin training for splash? You need to edit your gear's setup and delete all bonus bonuses to magic, including your Magic Strength to create a negative magic strength. For this, you have to have one of two sets of equipment as shown below. You want to gear full plate with shield for kites and Green dragonhide vambraces (-10 Magic) or cheap OSRS GP Cursed Goblin Staff.