This is similar to being burned or poisoned in Pokémon. A status is something that you can put on a card as a long-lasting effect. There are two types of effects: Permanent and non-permanent. Some examples of permanent effects are:
Some non-permanent effects are:
You can make a card give another card a status by using: opp.push.status
when making a card. Non-Permanent status's end after 1-5 turns