[When Attacking] You may play 1 Digimon card with [Sistermon] in its name from your hand or trash without paying its memory cost.
[Your Turn][Once Per Turn] When you play another Digimon, this Digimon gets +3000 DP and <Piercing> for the turn. (When this Digimon attacks and deletes an opponent's Digimon and survives the battle, it performs any security checks it normally would.)
Rulings Q&A — 1 entries
Q1Q1409
I use this Digimon’s [When Attacking] effect to play a Digimon card with [Sistermon] in its name. Does this Digimon’s [Your Turn] effect activate?