Event Disguise, Eriri [Saekano: How to Raise a Boring Girlfriend]

[AUTO] When you use this card's"Backup", put the top 3 cards of your opponent's deck into their waiting room. [ACT] [COUNTER] Backup 3000, Level 2 [(1) Put this card from your hand into your waiting room] (Choose 1 of your characters that is being frontal attacked, and that character gets +3000 power until end of turn)