Plaza of Heroes (EOS-078) (Borderless) [Edge of Eternities: Stellar Sights]

T: Add C.

T: Add one mana of any color. Spend this mana only to cast a legendary spell.

T: Add one mana of any color among legendary permanents you control.

3, T, Exile this land: Target legendary creature gains hexproof and indestructible until end of turn.