[A] Covenant - "Mahiro": Choose up to 2 of your cards in the Set State, shuffle them and put them on the bottom of your Deck, choose X of your gates, Set the top X cards of your Deck separately to the gates chosen via this effect (for each gate chosen this way, Set one and exactly one of those cards), and give the cards Set this way "[A] Detonate." X is number of cards put on the bottom of your Deck via this effect.
[A] Detonate Skill: Choose 1 of your "Mahiro", and that member gains +5000 power for the turn.