Half Elf Maiden Emilia (RZ/S46-E061 RR) Re:ZERO Card details

[CONT] If the number of other "Magic" or "Weapon" characters you have is three or more, this card gets +1500 power and the following ability. "[AUTO] When this card's battle opponent becomes [REVERSE], you may put that character into your opponent's memory."
[AUTO] [(2) Put a card from your hand into your waiting room & Put another character from your stage into your waiting room] This ability activates up to one time per turn. During the turn that this card was placed on the stage from your hand, when this card's battle opponent becomes [REVERSE], you may pay the cost. If you do, choose a card named "Great Spirit, Puck" in your waiting room, and put it on any position of your stage.