Up to four Heal triggers can be placed in a deck.

Heal triggers(治) allow you to remove 1 damage from your playmat if you have more or equal damage cards than your opponent.

Front triggers(前) give all the units in the front row of your playmat an additional 10,000 power.

Stand triggers(醒) lets you turn a rear-guard unit in horizontal position to vertical position, and it cannot perform drive checks for the rest of the turn.

Draw triggers(引) lets you draw 1 card from your deck and add it to your hand.

Critical triggers allow you to choose a card and increase the damage it deals by 1.

Each trigger lets you choose 1 unit to gain 5000 power(In the original series) or 10,000 power(In the V and Overdress series), and one of 6 different effects that can happen after(Certain series may not have certain triggers). The symbol in the top right corner of trigger units shows the effect that happens when they are revealed. Such units with a yellow strip on the bottom of the card are called trigger units, and they can affect the outcome of a battle.

Find the trigger icon in the top right corner of the card.

Cardfight vanguard rule 34