Kristy Damon (BT13-094) - Versus Royal Knights

[Start of Your Main Phase] If you have a Digimon with [Avian] or [Bird] in one of its traits, gain 1 memory.
[On Play] 1 of your Digimon gains "[On Deletion] You may play 1 [Biyomon] from your hand or trash without paying the cost" until the end of your opponent's turn.

[Security] Play this card without paying the cost.