Blossoming Expanse enters tapped. When Blossoming Expanse enters, you may put a basic land card from your hand onto the battlefield. {1}, {T}: Add one mana of any color.
{2}, {T}: Target opponent exiles a nonland, nontoken permanent they control. {2}, {T}: Put target permanent card exiled with Harmony Array onto the battlefield under your control.
Target player reveals their hand. You and that player secretly choose a nonland card from it. Then those cards are revealed. That player discards the chosen cards.
The Refractors are difficult to appease, but they can be impressed.