Baby, the Unknown Parasite (Card Game Fest 2022)

[+2] [Activate:Main] Draw 1 card. [-5] [Activate:Main] If your Leader Card is mono-blue : Choose up to 1 of your Leader Cards and it gets +15000 power and [Double Strike] for the turn. Until the start of your next turn, you can activate mono-blue cards with [Counter] skills from your hand by choosing 2 other cards in your hand and discarding them instead of paying their energy costs.