The following is an alternative / full replacement of the War Domain subclass for use in my campaigns.
Clerics worshipping a god with a warlike aspect take to battle as willingly as any dedicated warrior, or in some cases more so. Hardened by necessity, honed by violence, they stride into combat chanting battle cries to their god and exhortations to bravery as fervently as less martial priests might croon a hymnal or recite scripture.
When you or a creature within 30 feet of you misses with an attack roll, you can expend one use of your Channel Divinity and give that roll a +10 bonus, potentially causing it to hit. When you use this feature to benefit another creature's attack roll, you must take a Reaction to do so.
Your connection to this divine domain ensures you always have certain spells ready.
When you reach a Cleric level specified in the War Domain Spells table, you thereafter always have the listed spells prepared. They are Cleric spells for you and do not count against your Prepared Spell limit.
| Cleric Level | Spells |
|---|---|
|
|
Guiding Bolt, Magic Weapon, Shield of Faith, Spiritual Weapon |
|
|
Crusader's Mantle, Spirit Guardians |
|
|
Freedom of Movement, Staggering Smite |
|
|
Banishing Smite, Steel Wind Strike |
You can expend a use of your Channel Divinity to cast Shield of Faith or Spiritual Weapon rather than expending a spell slot. When you cast either spell in this way, the spell doesn't require Concentration. Instead, the spell lasts for 1 minute, but it ends early if you cast the spell again, have the Incapacitated condition, or die.
When you take the Attack action on your turn, you may replace one of the attacks with a casting of one of your Cleric cantrips that has a casting time of an action.
You can attack twice instead of once whenever you take the Attack action on your turn.
You gain Resistance to Bludgeoning, Piercing, and Slashing damage.