You pick this up on your Lv4 turn, which is where the combo actually begins. Sunflowmon is already in the battle area over Lalamon and its [On Play] already put Yoshino Fujieda down for free, so you have one Tamer with two cards face down under her, and a spare Sunflowmon in hand as today's contribution to the pile. Both players are on 5 security, their board is one Digimon that matters, and the memory is yours at 3.