Nexusbound Palace

Hexproof, Dredge 4
{t}: Add {s} (Nexus mana), which can be used as any color of mana.
{t}: Discard this card and get {s}{s}{s}{s} (4 Nexus mana)

When you cast a spell that costs more than 2, scry X/2, where X is the spell cost. If you have more than three Enchantment Lands, all 1-cost spells gain Storm.