Spellcasting. Ireena is a 3-level spellcaster. Its spellcasting ability is wisdom (spell save DC 13, + 5 to hit with spell attacks). Ireena has the following cleric spells prepared: 
Cantrips (at will): Light, Guidance, Spare the Dying
1st level (4 slots): Light, Faerie Fire, Cure Wounds, Guiding Bolt, Shield of Faith, Protection from Evil and Good
2nd level (2 slots): Lesser Restoration, Hold Person

***The following abilities are to be used extremely sparingly. If the DM deems an encounter deadly enough, or Ireena's emotional state to be compromised in battle Ireena can access one of the following abilities on a critical role. She gains these abilities from her past lives.***

Barbarian Rage. Ireena can call upon the strength of one of her previous lives to aide her in battle. She will rage similarly to a barbarian. This ability can't be used for another 1d6 days. 

As a bonus action, Ireena can enter rage.

While raging, you gain the following benefits if you aren’t wearing heavy armor:

• You have advantage on Strength checks and Strength saving throws.
• When you make a melee weapon attack using Strength, add a +2 to the damage roll. (Variant: damage increases as Ireena levels up. )
• You have resistance to bludgeoning, piercing, and slashing damage.

Ireena can’t cast spells or concentrate on them while raging.

Ireena's rage lasts for 30 seconds. It ends early if she is knocked unconscious or if her turn ends and she hasn’t attacked a hostile creature since her last turn or taken damage since then. She can also end her rage on her turn as a bonus action.

Divine Smite. For this ability, Ireena draws on her connection to the MorningLord as well as her connections to her past lives. When Ireena hits a creature with a melee weapon attack, she can expend one spell slot to deal radiant damage to the target, in addition to the weapon’s damage. The extra damage is 2d8 for a 1st-level spell slot, plus 1d8 for each spell level higher than 1st, to a maximum of 5d8. The damage increases by 1d8 if the target is an undead or a fiend, to a maximum of 6d8. This ability can't be used for another 1d6 days.

Knowledge of the Wizard. Ireena can cast one of the following wizard spells on her next turn without expending a spell slot: Gust of Wind, Misty Step, or Fireball. This ability can't be used for another 1d6 days.

Soul of the Sorcerer. Ireena can cast one of the following sorcerer spells on her next turn without expending a spell slot: Blur, Fly, or Flaming Sphere. This ability can't be used for another 1d6 days.

Longsword. Melee Weapon Attack: +4 to hit, reach 5 ft., 1 target. Hit: (1d8 + 4) versatile: (1d10 + 4) slashing damage. 

Light Crossbow. Ranged Weapon Attack: +4 to hit, Range: (30/120), Loading, Light, Hit: 1d6 + 4 piercing damage

Turn Undead. Having been bitten by a vampire twice, Ireena has a slightly inhuman quality to her. As a result, her turn undead is different than a typical cleric's and also backlashes against her own body. As an action, all undead within a five ft. radius of her must make a Wisdom saving throw (DC 13). On a fail, the undead are pushed back 15 + 1d10 ft and take 1d6 radiant damage (half damage on a save). Ireena herself takes 1d4 radiant damage no matter the outcome of the saving throw. This ability recharges after a short or long rest.