The War Priests have access to the full Cleric list up to the sixth level spells.
From PFSRD to War Priest (Highlighting me):
Spells work (divine): A warrior priest acts divine spells drawn from the cleric spell list, Its alignment, however, may prevent it from acting certain spells that contradict its moral or ethical beliefs. See the section "Chaotic, evil, good and legitimate spells". A warrior must choose and prepare his spells in advance.
The highest magic level of a warrior priest is the 6th. Cleric spells of 7th level and above are not on the spell list of the Warsprister classand a War Priest can not use Spell completion or Spellcaster Spell items (without using a successful spell checker) for Level 7 or higher Cleric spells.
War Priests have no limited number of spells known as sorcerers or spellbooks as sorcerers. Instead, like a minister, they simply know every spell on their spell list.
A bound item grants its owner a free spell that he can already cast.
From PFSRD via wizards (Highlighting me):
Arcane Bonding (Ex or Sp): … A bound object can be used once a day to cast any spell the sorcerer has in his spellbook and spell book is pourableEven if the spell is not prepared. This spell will be treated like any wizard's spell, including casting time, duration, and other effects depending on the level of the wizard. This spell can not be modified by metamagic talents or other abilities. The bound object can not be used to cast spells from the wizard's opposition schools (see Arcane School below). …
From the PFSRD on the Arcane Bloodline (Highlighting me):
Arcane Bond (Su): In the first level, you gain an arcane bond as a wizard equal to your sorcerer level. Your wizard levels stack up with all the wizard levels you have to determine the powers of your familiar or bound object. Once a day, you can cast one of your known spells with your bound object (as opposed to a wizard's bound object that he can use to cast any spell in his spellbook)., This ability does not allow you to have both a familiar and a bound item.
The bound object obtained through the blood line allows the character to cast any spell known to him. As long as it's a spell, they can actually work it, The Bloodline replaces the limitation "spells in your spell book" with a "spell you know" restriction, but does not override the "cast spells" limitation in the arcane bond rules.
A War Priest knows every spell on the Cleric list, including spells of the 6th level. With an Arcane Band acquired by Eldritch Heritage, they could put any spell on this list. As long as it is a spell, they can prepare normally,
Pros and cons of this trick
The primary advantage This combination allows you to essentially use a third spell slot (the one used to cast Paragon Surge) to cast any known spell, even if a higher spell slot is normally used. This is a pretty good profession, although it is better for full wizards like sorcerers, wizards, and ministers than for war priests who complete 6th level spells and later get these places as a full wizard.
The disadvantage this combo are:
- You have to waste an extra action casting Paragon Surge. If the normal casting of a spell from a spell requires a default action, 2 standard actions will be taken to work through that combination. However, the first action can be performed up to 1 minute per stage in advance.
- You can only use the combo as often as you have to wait for the Paragon Surge to settle before another casting gives you a new arcane bond.
- You have all the penalties of a bound item: The player must wear his wand / staff / weapon or wear his amulet / ring (by taking this hand or this magical item), not only to gain access to the free spell, but also to act any their spells usually without a concentration test.
From PFSRD via wizards (Highlighting me):
If the object is an amulet or a ring, it has to be worn to have an effectwhile staves, wands and weapons must be kept in one hand. If a magician tries to cast a spell without his tied object being carried or in his handhe has to do a concentration test or lose the spell. The DC for this exam is equal to 20+ the level of the spell. If the object is a ring or amulet, it is occupies the ring or throat slot accordingly,