Armored. Älä has disadvantage on Dexterity (Stealth) checks. Not that he would ever try to stealth.

Divine Smite. When Älä hits with a melee weapon attack, he can expend one spell slot to deal 2d8 extra radiant damage to the target, plus 1d8 against undead or fiends.

Spellcasting. Älä is a 3rd-level spellcaster. His spellcasting ability is Charisma (spell save DC 12, +4 to hit with spell attacks). Älä has the following paladin spells prepared:
Cantrips (at will): mage hand, toll the dead, word of radiance
1st level (3 slots): bane, bless, cure wounds, hunter's mark

Abjure Enemy (Recharge 0). Älä chooses 1 creature within 60 ft. that he can see. That creature makes a WIS saving throw (DC12). Fiends and undead have disadvantage on this saving throw. On failure, the creature is frightened and its speed is reduced to 0 (and it cannot benefit from bonuses to speed) for 1 minute or until it takes damage. On success, the creature's speed is halved for 1 minute or until it takes damage.

Divine Sense (Recharge 6). Älä can detect good and evil. Until the end of his next turn, he can sense anything affected by the hallow spell or know the location of any celestial, fiend, or undead within 60 ft. that is not behind total cover.

Lay on Hands (Recharge 0). Älä can touch a creature to restore 1d20 HP, or to cure a disease or neutralize a poison affecting the creature.

Longsword. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2) slashing or 7 (1d10 + 2) slashing damage if used with both hands.

Vow of Enmity (Recharge 6). Älä can choose a creature he can see within 10 ft. and gain advantage on attack rolls against it for 1 minute or until it drops to 0 HP or falls unconscious.