If you put a Paladin and a Wizard in a one on one fight, The Paladin is probably going to win, and that's why people like them. Paladin Smites work as follows: Cast as bonus action. For up to the next minute (earlier if concentration ends), your next hit with a melee weapon causes extra damage and a secondary effect.

Do smites only work once?

Or is it a one time use only. The smite spells do their thing the next time you hit with a qualifying attack, then they end.

How do smites work?

Smite is a 5 vs 5 team based game where players level up their chosen characters, fight the enemy team's minions and gods with the ultimate goal of killing their Titan. Players can buy items, learn and upgrade abilities and acquire potent buffs from neutral enemies to help make their chosen god stronger.