There are 5 types of cards in Might and Magic Fates:

Heroes 
They can gain XP and level up over the course of a game, unlocking new skills to help you destroy your opponent's creatures. The game ends when a hero dies.

Units
Your most important allies! Spend your gold to unleash powerful units on the battlefield with various traits that can synergize to defeat the opposing hero.

Buildings
In Might & Magic Fates, buildings shape the battlefield as much as creatures. Whether you're fortifying your defenses, fueling your army, or boosting your economy, structures offer powerful long-term effects that can turn the tide of battle.

Spells
Arcanic bursts of instant mayhem that obliterate, empower, or enchant without lingering on the board.

Artefacts
Artifacts are support elements that provide passive or reactive effects more reliably than creatures. Very few effects are capable of destroying them.

They have different rarities: common, rare, epic, legendary.
And each one of them can be foil, animated and even tradable!