The Attack Table, or AT, is a method for calculating base damage for attacks.
Whenever a card references the Attack Table, compare your power level to your opponent's power level. Depending on which brackets the attacking and defending personalities fall into, the result will be a number between 0 and 6.
The AT does not imply power stages or life cards of damage. Use the damage type specified by the card. For example: if the AT result is 3, an attack doing AT +4 life cards will deal 7 life cards; an attack doing AT +3 stages will deal 6 stages.